Human milk oligosaccharides to promote growth of beneficial bacteria

ABSTRACT

Disclosed are nutritional compositions including human milk oligosaccharides that can be administered to individuals including preterm infants, infants, toddlers, and children for improving gastrointestinal function and tolerance, as well as the growth of beneficial bacteria. Additional suitable methods of using the nutritional compositions including the human milk oligosaccharides are also disclosed.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of U.S. patent application Ser. No. 13/335,323 filed on Dec. 22, 2011, which claims the benefit of U.S. Provisional Application No. 61/428,867 filed on Dec. 31, 2010; and U.S. Provisional Application No. 61/474,691 filed on Apr. 12, 2011, which disclosures are incorporated by reference in their entirety.

FIELD OF THE DISCLOSURE

The present disclosure relates to human milk oligosaccharides (HMOs) for improving gastrointestinal function and tolerance in infants, toddlers, and children. More particularly, the present disclosure relates to human milk fortifiers, preterm and term infant formulas, and pediatric formulas comprising HMOs that can stimulate enteric nerve cells in the gastrointestinal tract, thereby treating and/or preventing numerous gastrointestinal-related conditions and diseases.

BACKGROUND OF THE DISCLOSURE

During postnatal development, a newborn's intestine experiences a process of maturation that ends with the production of gastrointestinal epithelium that functions as a selective barrier (i.e., gut barrier). The main function of the gastrointestinal epithelium is the absorption of nutrients, electrolytes and water, while preventing exposure to dietary and microbial antigens, including food allergens. Specifically, this barrier limits the passage of antigens to the systemic circulation, thereby preventing infection, inflammatory reactions, and other gastrointestinal diseases and disorders that may occur during infancy and later in life. For very young infants, and particularly, preterm infants, who have an immature immune system and intestinal tract, development of suboptimal intestinal flora may result in infection, diarrhea, allergies, and food intolerance.

Barrier formation and maintenance has been found to be affected by the diet. Breast milk contains components that not only act as pathogen receptor analogues, but also activate immune factors by infant intestinal epithelial cells and/or associated immune cell populations to enhance development and maturation of the infant's gastrointestinal and immune systems.

Not all infants, however, are in a position to receive human breast milk. It would therefore be desirable to provide nutritional compositions, and synthetic infant formulas in particular, that can produce nutritional benefits including improved gastrointestinal growth, development, and maturation. It would additionally be beneficial if the nutritional compositions could enhance immunity against microbial infections and other gastrointestinal diseases, conditions, and disorders.

SUMMARY OF THE DISCLOSURE

The present disclosure is directed to nutritional compositions, including synthetic infant formulas, synthetic pediatric formulas, and synthetic child formulas including at least one HMO alone or in combination with other components such as prebiotic oligosaccharides and/or probiotics, for improving gut function and immunity in an infant, toddler, child, or adult, along with related methods of use. More particularly, the nutritional compositions can improve growth and maturation of the gut barrier, thereby treating and/or preventing formula intolerance or other gastrointestinal diseases and/or disorders resulting from a loss or dysfunction of the gut barrier.

One embodiment is directed to a method of stimulating enteric nerve cells in the gastrointestinal tract of an individual in need thereof. The method comprises administering to the individual a nutritional composition comprising a neutral human milk oligosaccharide.

Another embodiment is directed to a method of improving cognition in an individual in need thereof. The method comprises administering to the individual a nutritional composition comprising a neutral human milk oligosaccharide in a concentration of from about 0.001 mg/mL to less than 2 mg/mL.

Another embodiment is directed to a method of promoting the growth of beneficial bacteria in an individual in need thereof. The method comprises administering to the individual a synthetic composition comprising 2′-fucosyllactose.

Another embodiment is directed to a method of reducing the incidence of colic in an infant in need thereof. The method comprises administering to the infant a synthetic infant formula comprising 2′-fucosyllactose.

Another embodiment is directed to a method of promoting gastrointestinal maturation in an infant in need thereof. The method comprises administering to the infant a synthetic infant formula comprising lacto-N-neotetraose.

Another embodiment is directed to a method of reducing the incidence of colic in an infant in need thereof. The method comprises administering to the infant a synthetic infant formula comprising lacto-N-neotetraose.

Another embodiment is directed to a method of reducing the incidence of necrotizing enterocolitis in an infant in need thereof. The method comprises administering to the infant a synthetic infant formula comprising lacto-N-neotetraose.

Another embodiment is directed to a synthetic pediatric formula comprising from about 0.001 mg/mL to about 20 mg/mL of human milk oligosaccharides and an oligosaccharide selected from the group consisting of galactooligosaccharides, fructooligosaccharides, inulin, and polydextrose, wherein the human milk oligosaccharides comprise 2′-fucosyllactose in an amount of from 0.001 mg/mL to less than 2 mg/mL.

Another embodiment is directed to a synthetic pediatric formula comprising from about 0.001 mg/mL to about 20 mg/mL of human milk oligosaccharides and an oligosaccharide selected from the group consisting of galactooligosaccharides, fructooligosaccharides, inulin, and polydextrose, wherein the human milk oligosaccharides comprise 2′-fucosyllactose in an amount of from greater than 2.5 mg/mL to about 20 mg/mL.

Another embodiment is directed to a synthetic pediatric formula comprising from about 0.001 mg/mL to about 20 mg/mL of a neutral human milk oligosaccharides and an acidic human milk oligosaccharide, wherein the neutral human milk oligosaccharide comprises 2′-fucosyllactose in an amount of from 0.001 mg/mL to less than 2 mg/mL.

Another embodiment is directed to a synthetic pediatric formula comprising from about 0.001 mg/mL to about 20 mg/mL of a neutral human milk oligosaccharides and an acidic human milk oligosaccharide, wherein the neutral human milk oligosaccharide comprises 2′-fucosyllactose in an amount of from greater than 2.5 mg/mL to about 20 mg/mL.

It has been discovered that HMOs that are delivered to the gut tissue stimulate the gut-brain-immune axis, and improve the immune system and enteric nervous system. Specifically, it has been found that 2′-fucosyllactose stimulates enteric nerve cells in the gastrointestinal tract and promotes the growth of beneficial bacteria such that gut function may be improved and gastrointestinal issues minimized.

Additionally, it has been found that the digestive tolerance of an infant, toddler, child, or adult can be significantly increased by administering to the infant, toddler, child or adult a select blend of carbohydrates including HMOs. Specifically, the carbohydrate blend includes a combination of fast, medium, and slowly digested carbohydrates including specific HMOs such as lacto-N-neotetraose, 2′-fucosyllactose, 3′-sialyllactose and/or 6′-sialyllactose.

Moreover, it has been found that intestinal barrier integrity of an infant, toddler, child, or adult can be significantly improved by administering to the infant, toddler, child, or adult a synbiotic composition including HMOs. Specifically, the synbiotic combination includes a probiotic, at least one of a galactooligosaccharide and a fructooligosaccharide (such as a short chain fructooligosaccharide) and at least one HMO. The synbiotic composition promotes the colonization of beneficial intestinal bacteria (microbiota) in order to discourage the growth of harmful bacteria.

Although the nutritional compositions and methods are primarily discussed herein in relation to preterm infants and infants in general, it should be understood that many of the benefits discussed herein may be provided to toddlers, children, and adults administered combinations of the HMOs alone, or with other components as described herein, such as prebiotic oligosaccharides and/or probiotics, for example. Particularly, in some embodiments, the incidence of gastrointestinal diseases and disorders that generally affect adults, such as Crohn's disease, irritable bowel syndrome and the like, can be reduced with the use of the nutritional compositions of the present disclosure including HMOs.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a graph depicting the effect of 2′FL and 3′FL on gut motility as measured in Example 44.

FIG. 2 is a table setting forth the microbiological medium used in the in vitro experiment of Example 45.

FIG. 3 is a table setting forth the carbohydrate components of the oligosaccharide substrates tested in Example 45.

FIG. 4 is a graph depicting the change in pH over time for formula fed and breast fed infants as tested in Example 45.

FIG. 5 is a graph depicting the change in pH over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 6 is a graph depicting change in acetate production over time for formula fed and breast fed infants as tested in Example 45.

FIG. 7 is a graph depicting change in acetate production over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 8 is a graph depicting change in propionate production over time for formula fed and breast fed infants as tested in Example 45.

FIG. 9 is a graph depicting change in propionate production over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 10 is a graph depicting change in butyrate production over time for formula fed and breast fed infants as tested in Example 45.

FIG. 11 is a graph depicting change in butyrate production over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 12 is a graph depicting change in lactic acid production over time for formula fed and breast fed infants as tested in Example 45.

FIG. 13 is a graph depicting change in lactic acid production over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 14 is a graph depicting change in short chain fatty acid production over time for formula fed and breast fed infants as tested in Example 45.

FIG. 15 is a graph depicting change in short chain fatty acid production over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 16 is a graph depicting change in Lactobacillus spp. populations over time in formula fed and breast fed infants as tested in Example 45.

FIG. 17 is a graph depicting change in Lactobacillus spp. populations over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 18 is a graph depicting change in Bifidobacterium spp. populations over time in formula fed and breast fed infants as tested in Example 45.

FIG. 19 is a graph depicting change in Bifidobacterium spp. populations over time as affected by the various oligosaccharide substrates as tested in Example 45.

FIG. 20 is a graph depicting change in E. coli populations over time in formula fed and breast fed infants as tested in Example 45.

FIG. 21 is a graph depicting change in E. coli populations over time as affected by various oligosaccharide substrates as tested in Example 45.

FIG. 22 is a graph depicting change in Clostridium perfringens populations over time in formula fed and breast fed infants as tested in Example 45.

FIG. 23 is a graph depicting change in Clostridium perfringens populations over time by various oligosaccharide substrates as tested in Example 45.

FIGS. 24A-24H depict growth curves of various Bifidobacterium spp. as evaluated in Example 46.

FIGS. 25A-25H depict growth curves of various Bifidobacterium spp. as evaluated in Example 46.

FIGS. 26A-26G depict growth curves of various Bifidobacterium spp. as evaluated in Example 46.

FIGS. 27-28 are graphs showing HT-29 Epithelial Cell Proliferation in the presence of LNnT.

FIGS. 29-30 are graphs showing Caco-2 Epithelial Cell Proliferation in the presence of LNnT.

FIGS. 31-33 are graphs showing Pre-confluent HT-29 Epithelial Cell Proliferation in the presence of LNnT, 2′FL, and 6′SL.

FIGS. 34-36 are graphs showing Pre-confluent HT-29 Epithelial Cell Differentiation in the presence of LNnT, 2′FL, and 6′FL.

FIGS. 37-39 are graphs showing Confluent HT-29 Epithelial Cell Resistance in the presence of LNnT, 2′FL, and 6′SL.

FIGS. 40-42 are graphs showing Pre-confluent Caco-2 Epithelial Cell Proliferation in the presence of LNnT, 2′FL, and 6′SL.

FIGS. 43-45 are graphs showing Post-confluent Caco-2 Epithelial Cell Differentiation in the presence of LNnT, 2′FL, and 6′FL.

FIGS. 46-48 are graphs showing Post-confluent Caco-2 Epithelial Cell Resistance in the presence of LNnT, 2′FL, and 6′SL.

DETAILED DESCRIPTION OF THE DISCLOSURE

The nutritional compositions and methods described herein utilize HMOs alone or in combination with at least one other prebiotic oligosaccharide and/or a probiotic for controlling and reducing a number of diseases, disorders and conditions related to the gut-brain-immune system. These and other features of the nutritional compositions and methods, as well as some of the many optional variations and additions, are described in detail hereafter.

The terms “retort packaging” and “retort sterilizing” are used interchangeably herein, and unless otherwise specified, refer to the common practice of filling a container, most typically a metal can or other similar package, with a nutritional liquid and then subjecting the liquid-filled package to the necessary heat sterilization step, to form a sterilized, retort packaged, nutritional liquid product.

The term “aseptic packaging” as used herein, unless otherwise specified, refers to the manufacture of a packaged product without reliance upon the above-described retort packaging step, wherein the nutritional liquid and package are sterilized separately prior to filling, and then are combined under sterilized or aseptic processing conditions to form a sterilized, aseptically packaged, nutritional liquid product.

The terms “fat” and “oil” as used herein, unless otherwise specified, are used interchangeably to refer to lipid materials derived or processed from plants or animals. These terms also include synthetic lipid materials so long as such synthetic materials are suitable for oral administration to humans.

The terms “human milk oligosaccharide” or “HMO”, unless otherwise specified, refers generally to a number of complex carbohydrates found in human breast milk that can be in acidic or neutral form, and to precursors thereof. Exemplary non-limiting human milk oligosaccharides include 3′-sialyllactose, 6′-sialyllactose, 3′-fucosyllactose, 2′-fucosyllactose, and lacto-N-neo-tetraose. Exemplary human milk oligosaccharide precursors include sialic acid and/or fucose.

The term “shelf stable” as used herein, unless otherwise specified, refers to a nutritional product that remains commercially stable after being packaged and then stored at 18-24° C. for at least 3 months, including from about 6 months to about 24 months, and also including from about 12 months to about 18 months.

The terms “nutritional formulation” or “nutritional composition” as used herein, are used interchangeably and, unless otherwise specified, refer to synthetic formulas including nutritional liquids, nutritional semi-liquid, nutritional solids, nutritional semi-solids, nutritional powders, nutritional supplements, and any other nutritional food product as known in the art. The nutritional powders may be reconstituted to form a nutritional liquid, all of which comprise one or more of fat, protein and carbohydrate and are suitable for oral consumption by a human. The terms “nutritional formulation” and “nutritional composition” do not include human breast milk.

The term “nutritional liquid” as used herein, unless otherwise specified, refers to nutritional compositions in ready-to-drink liquid form, concentrated form, and nutritional liquids made by reconstituting the nutritional powders described herein prior to use.

The term “nutritional powder” as used herein, unless otherwise specified, refers to nutritional compositions in flowable or scoopable form that can be reconstituted with water or another aqueous liquid prior to consumption and includes both spraydried and drymixed/dryblended powders.

The term “nutritional semi-solid,” as used herein, unless otherwise specified, refers to nutritional products that are intermediate in properties, such as rigidity, between solids and liquids. Some semi-solids examples include puddings, gelatins, and doughs.

The term “nutritional semi-liquid,” as used herein, unless otherwise specified, refers to nutritional products that are intermediate in properties, such as flow properties, between liquids and solids. Some semi-liquids examples include thick shakes and liquid gels.

The term “infant” as used herein, unless otherwise specified, refers to a person 12 months or younger. The term “preterm infant” as used herein, refers to a person born prior to 36 weeks of gestation.

The term “toddler” as used herein, unless otherwise specified, refers to a person greater than one year of age up to three years of age.

The term “child” as used herein, unless otherwise specified, refers to a person greater than three years of age up to twelve years of age.

The term “newborn” as used herein, unless otherwise specified, refers to a person from birth up to four weeks of age.

The terms “infant formula” or “synthetic infant formula” as used herein, unless otherwise specified, are used interchangeably and refer to liquid, solid, semi-liquid, and semi-solid human milk replacements or substitutes that are suitable for consumption by an infant. The synthetic formulas include components that are of semi-purified or purified origin. As used herein, unless otherwise specified, the terms “semi-purified” or “purified” refer to a material that has been prepared by purification of a natural material or by synthesis. The terms “infant formula” or “synthetic infant formula” do not include human breast milk.

The term “synthetic pediatric formula” as used herein, unless otherwise specified, refers to liquid, solid, semi-liquid, and semi-solid human milk replacements or substitutes that are suitable for consumption by an infant or toddler up to the age of 36 months (3 years). The synthetic formulas include components that are of semi-purified or purified origin. As used herein, unless otherwise specified, the terms “semi-purified” or “purified” refer to a material that has been prepared by purification of a natural material or by synthesis. The term “synthetic pediatric formula” does not include human breast milk.

The term “synthetic child formula” as used herein, unless otherwise specified, refers to liquid, solid, semi-liquid, and semi-solid human milk replacements or substitutes that are suitable for consumption by a child up to the age of 12 years. The synthetic formulas include components that are of semi-purified or purified origin. As used herein, unless otherwise specified, the terms “semi-purified” or “purified” refer to a material that has been prepared by purification of a natural material or by synthesis. The term “synthetic child formula” does not include human breast milk.

The term “preterm infant formula” as used herein, unless otherwise specified, refers to liquid and solid nutritional products suitable for consumption by a preterm infant.

The term “human milk fortifier” as used herein, unless otherwise specified, refers to liquid and solid nutritional products suitable for mixing with breast milk or preterm infant formula or infant formula for consumption by a preterm or term infant.

The term “postbiotics” as used herein, unless otherwise specified, refers to metabolites produced by probiotic bacteria.

The terms “susceptible” and “at risk” as used herein, unless otherwise specified, mean having little resistance to a certain condition or disease, including being genetically predisposed, having a family history of, and/or having symptoms of the condition or disease.

The term “cognition” as used herein, unless otherwise specified, refers to an individual's ability for learning, memory acquisition, and memory recall.

The terms “growth of a virus” or “growth of bacteria” as used herein, unless otherwise specified, refer to the production, proliferation, or replication of a virus or bacteria.

All percentages, parts and ratios as used herein, are by weight of the total composition, unless otherwise specified. All such weights, as they pertain to listed ingredients, are based on the active level and, therefore, do not include solvents or by-products that may be included in commercially available materials, unless otherwise specified.

Numerical ranges as used herein are intended to include every number and subset of numbers within that range, whether specifically disclosed or not. Further, these numerical ranges should be construed as providing support for a claim directed to any number or subset of numbers in that range. For example, a disclosure of from 1 to 10 should be construed as supporting a range of from 2 to 8, from 3 to 7, from 5 to 6, from 1 to 9, from 3.6 to 4.6, from 3.5 to 9.9, and so forth.

All references to singular characteristics or limitations of the present disclosure shall include the corresponding plural characteristic or limitation, and vice versa, unless otherwise specified or clearly implied to the contrary by the context in which the reference is made.

All combinations of method or process steps as used herein can be performed in any order, unless otherwise specified or clearly implied to the contrary by the context in which the referenced combination is made.

The nutritional compositions and methods may comprise, consist of, or consist essentially of the essential elements of the compositions and methods as described herein, as well as any additional or optional element described herein or otherwise useful in nutritional composition applications.

Product Form

The nutritional compositions of the present disclosure may be formulated and administered in any known or otherwise suitable oral product form. Any solid, liquid, semi-liquid, semi-solid or powder product form, including combinations or variations thereof, are suitable for use herein, provided that such forms allow for safe and effective oral delivery to the individual of the essential ingredients and any optional ingredients, as also defined herein.

The nutritional compositions of the present disclosure are desirably formulated as dietary product forms, which are defined herein as those embodiments comprising the ingredients of the present disclosure in a product form that then contains at least one of fat, protein, and carbohydrate, and preferably also contains vitamins, minerals, or combinations thereof. The nutritional compositions will comprise at least one HMO, and many times at least two or more HMOs, desirably in combination with at least one of protein, fat, vitamins, and minerals, to produce a nutritional combination.

The nutritional composition may be formulated with sufficient kinds and amounts of nutrients to provide a sole, primary, or supplemental source of nutrition, or to provide a specialized nutritional composition for use in individuals afflicted with specific diseases, disorders, or conditions or with a targeted nutritional benefit as described below.

Specific non-limiting examples of product forms suitable for use with the HMO-containing compositions as disclosed herein include, for example, liquid and powdered dietary supplements, liquid and powdered human milk fortifiers, liquid and powdered preterm infant formulas, liquid and powdered infant formulas, liquid and powdered elemental and semi-elemental formulas, liquid and powdered pediatric formulas, liquid and powdered toddler formulas, liquid and powdered follow-on formulas, liquid, powdered and solid adult nutritional formulas suitable for use with individuals suffering from food intolerance, allergies, immune disorders, and other gastrointestinal diseases, conditions, and/or disorders. Other non-limiting examples of product forms suitable for use with the HMO-containing compositions disclosed herein include nutritional formulas suitable for use with individuals who have been treated or are receiving antibiotic therapy or oral rehydration solutions suitable for use with infants, children, or adults suffering from diarrhea. Another non-limiting example includes a supplement including one or more HMOs that might or might not contain other nutrients. This supplement can be added to human milk or formula, or can be provided by itself during an enteral feeding period or used prior to an enteral feeding.

Nutritional Liquids

Nutritional liquids include both concentrated and ready-to-feed nutritional liquids. These nutritional liquids are most typically formulated as suspensions or emulsions, although other liquid forms are within the scope of the present disclosure.

Nutritional emulsions suitable for use may be aqueous emulsions comprising proteins, fats, and carbohydrates. These emulsions are generally flowable or drinkable liquids at from about 1° C. to about 25° C. and are typically in the form of oil-in-water, water-in-oil, or complex aqueous emulsions, although such emulsions are most typically in the form of oil-in-water emulsions having a continuous aqueous phase and a discontinuous oil phase.

The nutritional emulsions may be and typically are shelf stable. The nutritional emulsions typically contain up to about 95% by weight of water, including from about 50% to about 95%, also including from about 60% to about 90%, and also including from about 70% to about 85%, by weight of water. The nutritional emulsions may have a variety of product densities, but most typically have a density greater than about 1.03 g/mL, including greater than about 1.04 g/mL, including greater than about 1.055 g/mL, including from about 1.06 g/mL to about 1.12 g/mL, and also including from about 1.085 g/mL to about 1.10 g/mL.

The nutritional emulsions may have a caloric density tailored to the nutritional needs of the ultimate user, although in most instances the emulsions comprise generally at least 19 kcal/fl oz (660 kcal/liter), more typically from about 20 kcal/fl oz (675-680 kcal/liter) to about 25 kcal/fl oz (820 kcal/liter), even more typically from about 20 kcal/fl oz (675-680 kcal/liter) to about 24 kcal/fl oz (800-810 kcal/liter). Generally, the 22-24 kcal/fl oz formulas are more commonly used in preterm or low birth weight infants, and the 20-21 kcal/fl oz (675-680 to 700 kcal/liter) formulas are more often used in term infants. In some embodiments, the emulsion may have a caloric density of from about 50-100 kcal/liter to about 660 kcal/liter, including from about 150 kcal/liter to about 500 kcal/liter. In some specific embodiments, the emulsion may have a caloric density of 25, or 50, or 75, or 100 kcal/liter.

The nutritional emulsion may have a pH ranging from about 3.5 to about 8, but are most advantageously in a range of from about 4.5 to about 7.5, including from about 5.5 to about 7.3, including from about 6.2 to about 7.2.

Although the serving size for the nutritional emulsion can vary depending upon a number of variables, a typical serving size is generally at least about 1 mL, or even at least about 2 mL, or even at least about 5 mL, or even at least about 10 mL, or even at least about 25 mL, including ranges from about 2 mL to about 300 mL, including from about 4 mL to about 250 mL, and including from about 10 mL to about 240 mL.

Nutritional Solids

The nutritional solids may be in any solid form, but are typically in the form of flowable or substantially flowable particulate compositions, or at least particulate compositions. Particularly suitable nutritional solid product forms include spray dried, agglomerated and/or dryblended powder compositions. The compositions can easily be scooped and measured with a spoon or similar other device, and can easily be reconstituted by the intended user with a suitable aqueous liquid, typically water, to form a nutritional composition for immediate oral or enteral use. In this context, “immediate” use generally means within about 48 hours, most typically within about 24 hours, preferably right after reconstitution.

The nutritional powders may be reconstituted with water prior to use to a caloric density tailored to the nutritional needs of the ultimate user, although in most instances the powders are reconstituted with water to form compositions comprising at least 19 kcal/fl oz (660 kcal/liter), more typically from about 20 kcal/fl oz (675-680 kcal/liter) to about 25 kcal/fl oz (820 kcal/liter), even more typically from about 20 kcal/fl oz (675-680 kcal/liter) to about 24 kcal/fl oz (800-810 kcal/liter). Generally, the 22-24 kcal/fl oz formulas are more commonly used in preterm or low birth weight infants, and the 20-21 kcal/fl oz (675-680 to 700 kcal/liter) formulas are more often used in term infants. In some embodiments, the reconstituted powder may have a caloric density of from about 50-100 kcal/liter to about 660 kcal/liter, including from about 150 kcal/liter to about 500 kcal/liter. In some specific embodiments, the emulsion may have a caloric density of 25, or 50, or 75, or 100 kcal/liter.

Human Milk Oligosaccharides (HMOs)

The nutritional compositions of the present disclosure include at least one HMO, and in many embodiments, a combination of two or more HMOs. Oligosaccharides are one of the main components of human breast milk, which contains, on average, 10 grams per liter of neutral oligosaccharides and 1 gram per liter of acidic oligosaccharides. The compositional structure of HMOs is very complex and more than 200 different oligosaccharide-like structures are known.

The HMO or HMOs may be included in the nutritional compositions alone, or in some embodiments, in combination with other components (e.g., prebiotic oligosaccharides, probiotics, etc.) as described herein. In many embodiments, HMOs are included in the nutritional compositions with multiple additional components. The HMO or HMOs may be isolated or enriched from milk(s) secreted by mammals including, but not limited to: human, bovine, ovine, porcine, or caprine species. The HMOs may also be produced via microbial fermentation, enzymatic processes, chemical synthesis, or combinations thereof.

Suitable HMOs for use in the nutritional compositions may include neutral oligosaccharides, acidic oligosaccharides, n-acetylglucosylated oligosaccharides, and HMO precursors. Specific non-limiting examples of HMOs that may be included individually or in combination in the compositions of the present disclosure include: sialic acid (i.e., free sialic acid, lipid-bound sialic acid, protein-bound sialic acid); D-glucose (Glc); D-galactose (Gal); N-acetylglucosamine (GlcNAc); L-fucose (L-Fuc); D-fucose (D-fuc); fucosyl oligosaccharides (i.e., Lacto-N-fucopentaose I; Lacto-N-fucopentaose II; 2′-Fucosyllactose; 3′-Fucosyllactose; Lacto-N-fucopentaose III; Lacto-N-difucohexaose I; and Lactodifucotetraose); non-fucosylated, non-sialylated oligosaccharides (i.e., Lacto-N-tetraose and Lacto-N-neotetraose); sialyl oligosaccharides (i.e., 3′-Sialyl-3-fucosyllactose; Disialomonofucosyllacto-N-neohexaose; Monofucosylmonosialyllacto-N-octaose (sialyl Lea); Sialyllacto-N-fucohexaose II; Disialyllacto-N-fucopentaose II; Monofucosyldisialyllacto-N-tetraose); and sialyl fucosyl oligosaccharides i.e., 2′-Sialyllactose; 2-Sialyllactosamine; 3′-Sialyllactose; 3′-Sialyllactosamine; 6′-Sialyllactose; 6′-Sialyllactosamine; Sialyllacto-N-neotetraose c; Monosialyllacto-N-hexaose; Disialyllacto-N-hexaose I; Monosialyllacto-N-neohexaose I; Monosialyllacto-N-neohexaose II; Disialyllacto-N-neohexaose; Disialyllacto-N-tetraose; Disialyllacto-N-hexaose II; Sialyllacto-N-tetraose a; Disialyllacto-N-hexaose I; and Sialyllacto-N-tetraose. Also useful are variants in which the glucose (Glc) at the reducing end is replaced by N-acetylglucosamine (e.g., 2′-fucosyl-N-acetylglucosamine (2′-FLNac) is such a variant to 2′-fucosyllactose). These HMOs are described more fully in U.S. Patent Application No. 2009/0098240, which is herein incorporated by reference in its entirety. Other suitable examples of HMOs that may be included in the compositions of the present disclosure include lacto-N-fucopentaose V, lacto-N-hexaose, para-lacto-N-hexaose, lacto-N-neohexaose, para-lacto-N-neohexaose, monofucosyllacto-N-hexaose II, isomeric fucosylated lacto-N-hexaose (1), isomeric fucosylated lacto-N-hexaose (3), isomeric fucosylated lacto-N-hexaose (2), difucosyl-para-lacto-N-neohexaose, difucosyl-para-lacto-N-hexaose, difucosyllacto-N-hexaose, lacto-N-neoocataose, para-lacto-N-octanose, iso-lacto-N-octaose, lacto-N-octaose, monofucosyllacto-neoocataose, monofucosyllacto-N-ocataose, difucosyllacto-N-octaose I, difucosyllacto-N-octaose II, difucosyllacto-N-neoocataose II, difucosyllacto-N-neoocataose I, lacto-N-decaose, trifucosyllacto-N-neooctaose, trifucosyllacto-N-octaose, trifucosyl-iso-lacto-N-octaose, lacto-N-difuco-hexaose II, sialyl-lacto-N-tetraose a, sialyl-lacto-N-tetraose b, sialyl-lacto-N-tetraose c, sialyl-fucosyl-lacto-N-tetraose I, sialyl-fucosyl-lacto-N-tetraose II, and disialyl-lacto-N-tetraose, and combinations thereof. Particularly suitable nutritional compositions include at least one of the following HMOs or HMO precursors: sialic acid (SA); 2′-Sialyllactose (2′SL); 3′-Sialyllactose (3′SL); 6′-Sialyllactose (6′SL); 2′-Fucosyllactose (2′FL); 3′-Fucosyllactose (3′FL); and Lacto-N-neotetraose (LNnT), and in particular, combinations of 2′FL or 3′FL with at least one of 6′SL and 3′SL; and combinations of LNnT with at least one of 6′SL, 2′FL, and 3′FL.

Other exemplary combinations include: SA, 3′SL, 6′SL, 3′FL, 2′FL, and LNnT; 3′SL, 6′SL, 3′FL, 2′FL, and LNnT; SA, 6′SL, 3′FL, 2′FL, and LNnT; SA, 3′SL, 3′FL, 2′FL, and LNnT; SA, 3′SL, 6′SL, 2′FL, and LNnT; SA, 3′SL, 6′SL, 3′FL, and LNnT; SA, 3′SL, 6′SL, 3′FL, and 2′FL; SA and 3′SL; SA and 6′SL; SA and 2′FL; SA and LNnT; SA, 3′SL, and 6′SL; SA, 3′SL and 3′FL; SA, 3′SL and 2′FL; SA, 3′SL and LNnT; SA, 6′SL and 3′FL; SA, 6′SL, and 2′FL; SA, 6′SL, and LNnT; SA, 3′FL, and 2′FL; SA, 3′FL, and LNnT; SA, 2′FL, and LNnT; SA, 3′SL, 6′SL, and 3′FL; SA, 3′SL, 6′SL and 2′FL; SA, 3′SL, 6′SL, and LNnT; SA, 3′SL, 3′FL, and 2′FL; SA, 3′SL, 3′FL, and LNnT; SA, 3′SL, 2′FL, and LNnT; SA, 6′SL, 3′FL, and 2′FL; SA, 6′SL, 2′FL, and LNnT; SA, 6′SL, 3′FL, and LNnT; SA, 3′FL, 2′FL, and LNnT; SA, 6′SL, 2′FL, and LNnT; SA, 3′SL, 3′FL, 2′FL, and LNnT; SA, 6′SL, 3′FL, 2′FL, and LNnT; SA, 3′SL, 6′SL, 3′FL, and LNnT; SA, 3′SL, 3′FL, 2′FL, and LNnT; SA, 3′SL, 6′SL, 2′FL, and LNnT; 3′SL, 6′SL, 3′FL, and 2′FL; 3′SL, 6′SL, 2′FL, and LNnT; 3′SL, 3′FL, 2′FL, and LNnT; 3′SL, 6′SL, 3′FL, and LNnT; 3′SL, 6′SL, and 3′FL; 3′SL, 3′FL, and 2′FL; 3′SL, 2′FL, and LNnT; 3′SL, 6′SL, and 2′FL; 3′SL, 6′SL, and LNnT; 3′SL and 3′FL; 3′SL and 2′FL; 3′SL and LNnT; 6′SL and 3′FL; 6′SL and 2′FL; 6′SL and LNnT; 6′SL, 3′FL, and LNnT; 6′SL, 3′FL, 2′FL, and LNnT; 3′FL, 2′FL, and LNnT; 3′FL and LNnT; and 2′FL and LNnT.

The HMOs are present in the nutritional compositions in total amounts of HMO in the composition (mg of HMO per mL of composition) of at least about 0.001 mg/mL, including at least about 0.01 mg/mL, including from about 0.001 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to about 15 mg/mL, including from about 0.01 mg/mL to about 10 mg/mL, including from about 0.01 mg/mL to about 5 mg/mL, and including from about 0.001 mg/mL to about 1 mg/mL of total HMO in the nutritional composition, and including from about 0.001 mg/mL to about 0.23 mg/mL and from about 0.01 mg/mL to about 0.23 mg/mL. Typically, the amount of HMO in the nutritional composition will depend on the specific HMO or HMOs present and the amounts of other components in the nutritional compositions.

In one specific embodiment when the nutritional composition is a nutritional powder, the total concentration of HMOs in the nutritional powder is from about 0.0005% to about 5%, including from about 0.01% to about 1% (by weight of the nutritional powder).

In another specific embodiment, when the nutritional composition is a ready-to-feed nutritional liquid, the total concentration of HMOs in the ready-to-feed nutritional liquid is from about 0.0001% to about 0.50%, including from about 0.001% to about 0.15%, including from about 0.01% to about 0.10%, and further including from about 0.01% to about 0.03% (by weight of the ready-to-feed nutritional liquid).

In another specific embodiment, when the nutritional composition is a concentrated nutritional liquid, the total concentration of HMOs in the concentrated liquid is from about 0.0002% to about 0.60%, including from about 0.002% to about 0.30%, including from about 0.02% to about 0.20%, and further including from about 0.02% to about 0.06% (by weight of the concentrated nutritional liquid).

In one specific embodiment, the nutritional composition includes a neutral human milk oligosaccharide in an amount of from about 0.001 mg/mL to about 20 mg/mL, including from 0.01 mg/mL to about 20 mg/mL, including from about 0.001 mg/mL to less than 2 mg/mL, and including from about 0.01 mg/mL to less than 2 mg/mL.

In one specific embodiment of the present disclosure, a nutritional composition includes 2′FL. The 2′FL may be the only HMO included in the nutritional composition, or other additional HMOs may also be included in the nutritional composition (e.g., the 2′FL may be combined with 3′SL and/or 6′SL in some specific embodiments). In one embodiment, the 2′FL is included in the nutritional composition in an amount of from about 0.001 mg/mL to about 20 mg/mL, including from about 0.001 mg/mL to about 10 mg/mL, including from about 0.01 mg/mL to about 20 mg/mL, including from about 0.001 mg/mL to about 1 mg/mL, including from about 0.001 mg/mL to less than 2 mg/mL, including from about 0.01 mg/mL to less than 2 mg/mL, and also including from about 0.02 mg/mL to less than 2 mg/mL. In another embodiment, the 2′FL is included in the nutritional composition in an amount of from about 0.001 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to about 20 mg/mL, including from greater than 2.5 mg/mL to 20 mg/mL, including from greater than 2.5 mg/mL to 19.8 mg/mL, including from greater than 2.5 mg/mL to 15 mg/mL, and including from greater than 2.5 mg/mL to 10 mg/mL.

In one specific embodiment, the nutritional composition includes 6′SL, alone or in combination with other HMOs, in an amount of from about 0.001 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to about 20 mg/mL, including from about 0.001 mg/mL to less than 0.25 mg/mL, and including from about 0.01 mg/mL to less than 0.25 mg/mL. In another embodiment, the nutritional composition includes 6′SL, alone or in combination with other HMOs, in an amount of from about 0.001 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to about 20 mg/mL, including from greater than 0.4 mg/mL to about 20 mg/mL, including from greater than 0.4 mg/mL to about 15 mg/mL, and including from greater than 0.4 mg/mL to about 10 mg/mL.

In one embodiment, when the nutritional composition includes 6′SL, the total amount of HMOs in the nutritional composition includes at least about 88% (by total weight HMOs) 6′SL, including from about 88% (by total weight HMOs) to about 96% (by total weight HMOs), including from about 88% (by total weight HMOs) to about 100% (by total weight HMOs), and including about 100% (by total weight HMOs) 6′SL.

In another embodiment, the nutritional composition includes 3′SL, alone or in combination with other HMOs, in an amount of from about 0.001 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to less than 0.15 mg/mL, including from greater than 0.25 mg/mL to about 20 mg/mL, including from greater than 0.25 mg/mL to about 15 mg/mL, and including from greater than 0.25 mg/mL to about 10 mg/mL.

In one embodiment, when the nutritional composition includes 3′SL, the total amount of HMOs in the nutritional composition includes at least about 85% (by total weight HMOs) 3′SL, including from about 85% (by total weight HMOs) to about 88% (by total weight HMOs), including from about 88% (by total weight HMOs) to about 100% (by total weight HMOs), and including about 100% (by total weight HMOs) 3′SL.

In one specific embodiment, the nutritional composition includes LNnT, alone or in combination with other HMOs, in an amount of from about 0.001 mg/mL to about 20 mg/mL, including from about 0.01 mg/mL to about 20 mg/mL, including from about 0.001 mg/mL to less than 0.2 mg/mL, including from about 0.01 mg/mL to less than 0.2 mg/mL, including from greater than 0.32 mg/mL to about 20 mg/mL, including from greater than 0.32 mg/mL to about 15 mg/mL, and including from greater than 0.32 mg/mL to about 10 mg/mL.

Additional Prebiotic Oligosaccharides

The nutritional compositions of the present disclosure may, in addition to the HMOs described above, comprise an additional source or sources of prebiotic oligosaccharides (the total amount of oligosaccharides being referred to herein as an “oligosaccharide blend” of the nutritional composition). Suitable additional sources of prebiotic oligosaccharides for use in the nutritional compositions include any prebiotic oligosaccharide that is suitable for use in an oral nutritional composition and is compatible with the essential elements and features of such compositions. In some embodiments, the nutritional composition includes a combination of one or more HMOs and one or more additional prebiotic oligosaccharides such that the composition provides a synergistic benefit to the end user, such as a synergistic benefit in improving feeding intolerance in infants.

In some embodiments, the combinations of HMO or HMOs with the additional prebiotic oligosaccharides to provide the synergistic effect include HMOs and additional prebiotic oligosaccharides that ferment at a rapid rate (“rapidly-fermenting oligosaccharides”), oligosaccharides that ferment at a moderate rate (“medium-fermenting oligosaccharides”), and/or oligosaccharides that ferment at a slow rate (“slowly-fermenting oligosaccharides”). Some preferred embodiments provide a nutritional composition that includes at least one HMO in combination with a rapidly-fermenting oligosaccharide, a medium-fermenting oligosaccharide, and/or a slowly-fermenting oligosaccharide.

Non-limiting examples of suitable additional prebiotic oligosaccharides for use in the nutritional compositions described herein include prebiotic oligosaccharides that have a degree of polymerization (DP) of at least 2 monose units, which are not or only partially digested in the intestine by the action of acids or digestive enzymes present in the human upper digestive tract (small intestine and stomach), but which are fermentable by the human intestinal flora. The term “monose units” refers to units having a closed ring structure, preferably hexose, e.g., the pyranose or furanose forms. Particularly preferred oligosaccharides for use in combination with the HMO or HMOs in the nutritional compositions of the present disclosure include galactooligosaccharides (GOS), fructooligosaccharides (FOS), short chain fructooligosaccharides, inulin, oligofructose, polydextrose (PDX), pectin hydrolysate, and gum fiber. In one specific embodiment, the gum fiber is gum arabic.

The oligosaccharide blend is present in the nutritional compositions in a total amount of at least about 1 mg/mL, including from about 1 mg/mL to about 20 mg/mL, including from about 1 mg/mL to about 15 mg/mL, including from about 1 mg/mL to about 10 mg/mL, including from about 1 mg/mL to about 5 mg/mL In one embodiment, the oligosaccharide blend is present in the nutritional composition in a total amount of from about 1 mg/mL to about 4 mg/mL.

Typically, when used as an oligosaccharide blend, the nutritional compositions, in addition to the HMO or HMOs, include at least one rapidly-fermented oligosaccharide, at least one medium-fermented oligosaccharide, and, optionally, at least one slowly-fermented oligosaccharide to provide a nutritional composition that is tolerated well by preterm and term infants (i.e., reduced gassiness and/or stool frequency). Rapidly-fermented oligosaccharides generally have a fermentation rate of greater than 4,000 μg/g of dry matter/hour; medium-fermented oligosaccharides generally have a fermentation rate of from 1,500 μg/g of dry matter/hour to 4,000 μg/g of dry matter/hour; and slowly-fermented oligosaccharides generally have a fermentation rate of less than 1,500 μg/g of dry matter/hour.

By way of specific example, rapidly-fermented oligosaccharides include FOS, GOS (about 9,304 μg/g of dry matter/hour), LNnT (about 4,488 μg/g of dry matter/hour), 2′FL (about 4,872 μg/g of dry matter/hour), and combinations thereof. Medium-fermented oligosaccharides include 6′SL (about 1,809 μg/g of dry matter/hour), 3′SL, 2′FL, 3′FL, LNnT and combinations thereof. Slowly-fermented oligosaccharides include longer chain carbohydrates such as inulin (about 1,435 μg/g of dry matter/hour), gum fibers (e.g., gum arabic (about 785 μg/g of dry matter/hour)), and combinations thereof.

When used in an oligosaccharide blend, the rapidly-fermented oligosaccharides can be included in the nutritional compositions in amounts of from about 0.05 mg/mL to about 20 mg/mL, including from about 0.5 mg/mL to about 15 mg/mL, including from about 0.5 mg/mL to about 10 mg/mL, including from about 1 mg/mL to about 15 mg/mL, including from about 1 mg/mL to about 10 mg/mL, including from about 2 mg/mL to about 8 mg/mL, and also including from about 3 mg/mL to about 5 mg/mL. The medium-fermented oligosaccharides can be included in the nutritional compositions in amounts of from about 0.05 mg/mL to about 20 mg/mL, including from about 0.05 mg/mL to about 15 mg/mL, including from about 0.05 mg/mL to about 10 mg/mL, including from about 0.05 mg/mL to about 5 mg/mL, including from about 0.05 mg/mL to about 2.5 mg/mL, including from about 0.05 mg/mL to about 1 mg/mL, including from about 0.05 mg/mL to about 0.5 mg/mL, and including from about 0.05 mg/mL to about 0.25 mg/mL. The slowly-fermented oligosaccharides can be included in the nutritional compositions in amounts of from about 0.05 mg/mL to about 20 mg/mL, including from about 0.05 mg/mL to about 15 mg/mL, including from about 0.05 mg/mL to about 10 mg/mL, including from about 0.05 mg/mL to about 5 mg/mL, and also including from about 0.05 mg/mL to about 2.5 mg/mL.

In one specific embodiment, the nutritional composition includes an oligosaccharide blend including LNnT, 6′SL and inulin in a total amount of oligosaccharide blend of from about 0.05 mg/mL to about 20 mg/mL.

In another specific embodiment, the nutritional composition includes an oligosaccharide blend including 2′FL, 6′SL and inulin in a total amount of oligosaccharide blend of from about 0.05 mg/mL to about 20 mg/mL.

Other exemplary combinations include: FOS, GOS, 2′FL, LNnT, 3′SL, and 6′SL; FOS, GOS, 2′FL, 3′SL, and 6′SL; FOS, GOS, LNnT, 3′SL, and 6′SL; FOS, 2′FL, LNnT, 3′SL, and 6′SL; GOS, 2′FL, LNnT, 3′SL, and 6′SL; FOS, GOS, 3′SL, and 6′SL; FOS, 2′FL, 3′SL, and 6′SL; FOS, LNnT, 3′SL, and 6′SL; GOS, 2′FL, 3′SL, and 6′SL; GOS, LNnT, 3′SL, and 6′SL; 2′FL, LNnT, 3′SL, and 6′SL; FOS, 3′SL, and 6′SL; GOS, 3′SL, and 6′SL; 2′FL, 3′SL, and 6′SL; LNnT, 3′SL, and 6′SL; FOS, GOS, 2′FL, LNnT, and 3′SL; FOS, GOS, 2′FL, and 3′SL; FOS, GOS, LNnT, and 3′SL; FOS, 2′FL, LNnT, and 3′SL; GOS, 2′FL, LNnT, and 3′SL; FOS, GOS, and 3′SL; FOS, 2′FL, and 3′SL; FOS, LNnT, and 3′SL; GOS, 2′FL, and 3′SL; GOS, LNnT, and 3′SL; 2′FL, LNnT, and 3′SL; FOS and 3′SL; GOS and 3′SL; 2′FL and 3′SL; LNnT and 3′SL; FOS, GOS, 2′FL, LNnT, and 6′SL; FOS, GOS, 2′FL, and 6′SL; FOS, GOS, LNnT, and 6′SL; FOS, 2′FL, LNnT, and 6′SL; GOS, 2′FL, LNnT, and 6′SL; FOS, GOS, and 6′SL; FOS, 2′FL, and 6′SL; FOS, LNnT, and 6′SL; GOS, 2′FL, and 6′SL; GOS, LNnT, and 6′SL; 2′FL, LNnT, and 6′SL; FOS and 6′SL; GOS and 6′SL; 2′FL and 6′SL; and LNnT and 6′SL.

Further exemplary combinations include: FOS, GOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, 2′FL, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; GOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, 2′FL, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; GOS, 2′FL, 3′SL, 6′SL, inulin, a gum, and polydextrose; GOS, LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; 2′FL, LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, 3′SL, 6′SL, inulin, a gum, and polydextrose; GOS, 3′SL, 6′SL, inulin, a gum, and polydextrose; 2′FL, 3′SL, 6′SL, inulin, a gum, and polydextrose; LNnT, 3′SL, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, inulin, a gum, and polydextrose; FOS, GOS, 2′FL, 3′SL, inulin, a gum, and polydextrose; FOS, GOS, LNnT, 3′SL, inulin, a gum, and polydextrose; FOS, 2′FL, LNnT, 3′SL, inulin, a gum, and polydextrose; GOS, 2′FL, LNnT, 3′SL, inulin, a gum, and polydextrose; FOS, GOS, 3′SL, inulin, a gum, and polydextrose; FOS, 2′FL, 3′SL, inulin, a gum, and polydextrose; FOS, LNnT, 3′SL, inulin, a gum, and polydextrose; GOS, 2′FL, 3′SL, inulin, a gum, and polydextrose; GOS, LNnT, 3′SL, inulin, a gum, and polydextrose; 2′FL, LNnT, 3′SL, inulin, a gum, and polydextrose; FOS, 3′SL, inulin, a gum, and polydextrose; GOS, 3′SL, inulin, a gum, and polydextrose; 2′FL, 3′SL, inulin, a gum, and polydextrose; LNnT, 3′SL, inulin, a gum, and polydextrose; FOS, GOS, 2′FL, LNnT, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, 2′FL, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, LNnT, 6′SL, inulin, a gum, and polydextrose; FOS, 2′FL, LNnT, 6′SL, inulin, a gum, and polydextrose; GOS, 2′FL, LNnT, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, 6′SL, inulin, a gum, and polydextrose; FOS, 2′FL, 6′SL, inulin, a gum, and polydextrose; FOS, LNnT, 6′SL, inulin, a gum, and polydextrose; GOS, 2′FL, 6′SL, inulin, a gum, and polydextrose; GOS, LNnT, 6′SL, inulin, a gum, and polydextrose; 2′FL, LNnT, 6′SL, inulin, a gum, and polydextrose; FOS, 6′SL, inulin, a gum, and polydextrose; GOS, 6′SL, inulin, a gum, and polydextrose; 2′FL, 6′SL, inulin, a gum, and polydextrose; LNnT, 6′SL, inulin, a gum, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, and a gum; FOS, GOS, 2′FL, 3′SL, 6′SL, inulin, and a gum; FOS, GOS, LNnT, 3′SL, 6′SL, inulin, and a gum; FOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, and a gum; GOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, and a gum; FOS, GOS, 3′SL, 6′SL, inulin, and a gum; FOS, 2′FL, 3′SL, 6′SL, inulin, and a gum; FOS, LNnT, 3′SL, 6′SL, inulin, and a gum; GOS, 2′FL, 3′SL, 6′SL, inulin, and a gum; GOS, LNnT, 3′SL, 6′SL, inulin, and a gum; 2′FL, LNnT, 3′SL, 6′SL, inulin, and a gum; FOS, 3′SL, 6′SL, inulin, and a gum; GOS, 3′SL, 6′SL, inulin, and a gum; 2′FL, 3′SL, 6′SL, inulin, and a gum; LNnT, 3′SL, 6′SL, inulin, and a gum; FOS, GOS, 2′FL, LNnT, 3′SL, inulin, and a gum; FOS, GOS, 2′FL, 3′SL, inulin, and a gum; FOS, GOS, LNnT, 3′SL, inulin, and a gum; FOS, 2′FL, LNnT, 3′SL, inulin, and a gum; GOS, 2′FL, LNnT, 3′SL, inulin, and a gum; FOS, GOS, 3′SL, inulin, and a gum; FOS, 2′FL, 3′SL, inulin, and a gum; FOS, LNnT, 3′SL, inulin, and a gum; GOS, 2′FL, 3′SL, inulin, and a gum; GOS, LNnT, 3′SL, inulin, and a gum; 2′FL, LNnT, 3′SL, inulin, and a gum; FOS, 3′SL, inulin, and a gum; GOS, 3′SL, inulin, and a gum; 2′FL, 3′SL, inulin, and a gum; LNnT, 3′SL, inulin, and a gum; FOS, GOS, 2′FL, LNnT, 6′SL, inulin, and a gum; FOS, GOS, 2′FL, 6′SL, inulin, and a gum; FOS, GOS, LNnT, 6′SL, inulin, and a gum; FOS, 2′FL, LNnT, 6′SL, inulin, and a gum; GOS, 2′FL, LNnT, 6′SL, inulin, and a gum; FOS, GOS, 6′SL, inulin, and a gum; FOS, 2′FL, 6′SL, inulin, and a gum; FOS, LNnT, 6′SL, inulin, and a gum; GOS, 2′FL, 6′SL, inulin, and a gum; GOS, LNnT, 6′SL, inulin, and a gum; 2′FL, LNnT, 6′SL, inulin, and a gum; FOS, 6′SL, inulin, and a gum; GOS, 6′SL, inulin, and a gum; 2′FL, 6′SL, inulin, and a gum; LNnT, 6′SL, inulin, and a gum; FOS, GOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, and polydextrose; FOS, GOS, 2′FL, 3′SL, 6′SL, inulin, and polydextrose; FOS, GOS, LNnT, 3′SL, 6′SL, inulin, and polydextrose; FOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, and polydextrose; GOS, 2′FL, LNnT, 3′SL, 6′SL, inulin, and polydextrose; FOS, GOS, 3′SL, 6′SL, inulin, and polydextrose; FOS, 2′FL, 3′SL, 6′SL, inulin, and polydextrose; FOS, LNnT, 3′SL, 6′SL, inulin, and polydextrose; GOS, 2′FL, 3′SL, 6′SL, inulin, and polydextrose; GOS, LNnT, 3′SL, 6′SL, inulin, and polydextrose; 2′FL, LNnT, 3′SL, 6′SL, inulin, and polydextrose; FOS, 3′SL, 6′SL, inulin, and polydextrose; GOS, 3′SL, 6′SL, inulin, and polydextrose; 2′FL, 3′SL, 6′SL, inulin, and polydextrose; LNnT, 3′SL, 6′SL, inulin, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, inulin, and polydextrose; FOS, GOS, 2′FL, 3′SL, inulin, and polydextrose; FOS, GOS, LNnT, 3′SL, inulin, and polydextrose; FOS, 2′FL, LNnT, 3′SL, inulin, and polydextrose; GOS, 2′FL, LNnT, 3′SL, inulin, and polydextrose; FOS, GOS, 3′SL, inulin, and polydextrose; FOS, 2′FL, 3′SL, inulin, and polydextrose; FOS, LNnT, 3′SL, inulin, and polydextrose; GOS, 2′FL, 3′SL, inulin, and polydextrose; GOS, LNnT, 3′SL, inulin, and polydextrose; 2′FL, LNnT, 3′SL, inulin, and polydextrose; FOS, 3′SL, inulin, and polydextrose; GOS, 3′SL, inulin, and polydextrose; 2′FL, 3′SL, inulin, and polydextrose; LNnT, 3′SL, inulin, and polydextrose; FOS, GOS, 2′FL, LNnT, 6′SL, inulin, and polydextrose; FOS, GOS, 2′FL, 6′SL, inulin, and polydextrose; FOS, GOS, LNnT, 6′SL, inulin, and polydextrose; FOS, 2′FL, LNnT, 6′SL, inulin, and polydextrose; GOS, 2′FL, LNnT, 6′SL, inulin, and polydextrose; FOS, GOS, 6′SL, inulin, and polydextrose; FOS, 2′FL, 6′SL, inulin, and polydextrose; FOS, LNnT, 6′SL, inulin, and polydextrose; GOS, 2′FL, 6′SL, inulin, and polydextrose; GOS, LNnT, 6′SL, inulin, and polydextrose; 2′FL, LNnT, 6′SL, inulin, and polydextrose; FOS, 6′SL, inulin, and polydextrose; GOS, 6′SL, inulin, and polydextrose; 2′FL, 6′SL, inulin, and polydextrose; LNnT, 6′SL, inulin, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, 6′SL, a gum, and polydextrose; FOS, GOS, 2′FL, 3′SL, 6′SL, a gum, and polydextrose; FOS, GOS, LNnT, 3′SL, 6′SL, a gum, and polydextrose; FOS, 2′FL, LNnT, 3′SL, 6′SL, a gum, and polydextrose; GOS, 2′FL, LNnT, 3′SL, 6′SL, a gum, and polydextrose; FOS, GOS, 3′SL, 6′SL, a gum, and polydextrose; FOS, 2′FL, 3′SL, 6′SL, a gum, and polydextrose; FOS, LNnT, 3′SL, 6′SL, a gum, and polydextrose; GOS, 2′FL, 3′SL, 6′SL, a gum, and polydextrose; GOS, LNnT, 3′SL, 6′SL, a gum, and polydextrose; 2′FL, LNnT, 3′SL, 6′SL, a gum, and polydextrose; FOS, 3′SL, 6′SL, a gum, and polydextrose; GOS, 3′SL, 6′SL, a gum, and polydextrose; 2′FL, 3′SL, 6′SL, a gum, and polydextrose; LNnT, 3′SL, 6′SL, a gum, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, a gum, and polydextrose; FOS, GOS, 2′FL, 3′SL, a gum, and polydextrose; FOS, GOS, LNnT, 3′SL, a gum, and polydextrose; FOS, 2′FL, LNnT, 3′SL, a gum, and polydextrose; GOS, 2′FL, LNnT, 3′SL, a gum, and polydextrose; FOS, GOS, 3′SL, a gum, and polydextrose; FOS, 2′FL, 3′SL, a gum, and polydextrose; FOS, LNnT, 3′SL, a gum, and polydextrose; GOS, 2′FL, 3′SL, a gum, and polydextrose; GOS, LNnT, 3′SL, a gum, and polydextrose; 2′FL, LNnT, 3′SL, a gum, and polydextrose; FOS, 3′SL, a gum, and polydextrose; GOS, 3′SL, a gum, and polydextrose; 2′FL, 3′SL, a gum, and polydextrose; LNnT, 3′SL, a gum, and polydextrose; FOS, GOS, 2′FL, LNnT, 6′SL, a gum, and polydextrose; FOS, GOS, 2′FL, 6′SL, a gum, and polydextrose; FOS, GOS, LNnT, 6′SL, a gum, and polydextrose; FOS, 2′FL, LNnT, 6′SL, a gum, and polydextrose; GOS, 2′FL, LNnT, 6′SL, a gum, and polydextrose; FOS, GOS, 6′SL, a gum, and polydextrose; FOS, 2′FL, 6′SL, a gum, and polydextrose; FOS, LNnT, 6′SL, a gum, and polydextrose; GOS, 2′FL, 6′SL, a gum, and polydextrose; GOS, LNnT, 6′SL, a gum, and polydextrose; 2′FL, LNnT, 6′SL, a gum, and polydextrose; FOS, 6′SL, a gum, and polydextrose; GOS, 6′SL, a gum, and polydextrose; 2′FL, 6′SL, a gum, and polydextrose; LNnT, 6′SL, a gum, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, 6′SL, and inulin; FOS, GOS, 2′FL, 3′SL, 6′SL, and inulin; FOS, GOS, LNnT, 3′SL, 6′SL, and inulin; FOS, 2′FL, LNnT, 3′SL, 6′SL, and inulin; GOS, 2′FL, LNnT, 3′SL, 6′SL, and inulin; FOS, GOS, 3′SL, 6′SL, and inulin; FOS, 2′FL, 3′SL, 6′SL, and inulin; FOS, LNnT, 3′SL, 6′SL, and inulin; GOS, 2′FL, 3′SL, 6′SL, and inulin; GOS, LNnT, 3′SL, 6′SL, and inulin; 2′FL, LNnT, 3′SL, 6′SL, and inulin; FOS, 3′SL, 6′SL, and inulin; GOS, 3′SL, 6′SL, and inulin; 2′FL, 3′SL, 6′SL, and inulin; LNnT, 3′SL, 6′SL, and inulin; FOS, GOS, 2′FL, LNnT, 3′SL, and inulin; FOS, GOS, 2′FL, 3′SL, and inulin; FOS, GOS, LNnT, 3′SL, and inulin; FOS, 2′FL, LNnT, 3′SL, and inulin; GOS, 2′FL, LNnT, 3′SL, and inulin; FOS, GOS, 3′SL, and inulin; FOS, 2′FL, 3′SL, and inulin; FOS, LNnT, 3′SL, and inulin; GOS, 2′FL, 3′SL, and inulin; GOS, LNnT, 3′SL, and inulin; 2′FL, LNnT, 3′SL, and inulin; FOS, 3′SL, and inulin; GOS, 3′SL, and inulin; 2′FL, 3′SL, and inulin; LNnT, 3′SL, and inulin; FOS, GOS, 2′FL, LNnT, 6′SL, and inulin; FOS, GOS, 2′FL, 6′SL, and inulin; FOS, GOS, LNnT, 6′SL, and inulin; FOS, 2′FL, LNnT, 6′SL, and inulin; GOS, 2′FL, LNnT, 6′SL, and inulin; FOS, GOS, 6′SL, and inulin; FOS, 2′FL, 6′SL, and inulin; FOS, LNnT, 6′SL, and inulin; GOS, 2′FL, 6′SL, and inulin; GOS, LNnT, 6′SL, and inulin; 2′FL, LNnT, 6′SL, and inulin; FOS, 6′SL, and inulin; GOS, 6′SL, and inulin; FOS, GOS, 2′FL, LNnT, 3′SL, 6′SL, and polydextrose; FOS, GOS, 2′FL, 3′SL, 6′SL, and polydextrose; FOS, GOS, LNnT, 3′SL, 6′SL, and polydextrose; FOS, 2′FL, LNnT, 3′SL, 6′SL, and polydextrose; GOS, 2′FL, LNnT, 3′SL, 6′SL, and polydextrose; FOS, GOS, 3′SL, 6′SL, and polydextrose; FOS, 2′FL, 3′SL, 6′SL, and polydextrose; FOS, LNnT, 3′SL, 6′SL, and polydextrose; GOS, 2′FL, 3′SL, 6′SL, and polydextrose; GOS, LNnT, 3′SL, 6′SL, and polydextrose; 2′FL, LNnT, 3′SL, 6′SL, and polydextrose; FOS, 3′SL, 6′SL, and polydextrose; GOS, 3′SL, 6′SL, and polydextrose; 2′FL, 3′SL, 6′SL, and polydextrose; LNnT, 3′SL, 6′SL, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, and polydextrose; FOS, GOS, 2′FL, 3′SL, and polydextrose; FOS, GOS, LNnT, 3′SL, and polydextrose; FOS, 2′FL, LNnT, 3′SL, and polydextrose; GOS, 2′FL, LNnT, 3′SL, and polydextrose; FOS, GOS, 3′SL, and polydextrose; FOS, 2′FL, 3′SL, and polydextrose; FOS, LNnT, 3′SL, and polydextrose; GOS, 2′FL, 3′SL, and polydextrose; GOS, LNnT, 3′SL, and polydextrose; 2′FL, LNnT, 3′SL, and polydextrose; FOS, 3′SL, and polydextrose; GOS, 3′SL, and polydextrose; 2′FL, 3′SL, and polydextrose; LNnT, 3′SL, and polydextrose; FOS, GOS, 2′FL, LNnT, 6′SL, and polydextrose; FOS, GOS, 2′FL, 6′SL, and polydextrose; FOS, GOS, LNnT, 6′SL, and polydextrose; FOS, 2′FL, LNnT, 6′SL, and polydextrose; GOS, 2′FL, LNnT, 6′SL, and polydextrose; FOS, GOS, 6′SL, and polydextrose; FOS, 2′FL, 6′SL, and polydextrose; FOS, LNnT, 6′SL, and polydextrose; GOS, 2′FL, 6′SL, and polydextrose; GOS, LNnT, 6′SL, and polydextrose; 2′FL, LNnT, 6′SL, and polydextrose; FOS, 6′SL, and polydextrose; GOS, 6′SL, and polydextrose; 2′FL, 6′SL, and polydextrose; LNnT, 6′SL, and polydextrose; FOS, GOS, 2′FL, LNnT, 3′SL, 6′SL, and a gum; FOS, GOS, 2′FL, 3′SL, 6′SL, and a gum; FOS, GOS, LNnT, 3′SL, 6′SL, and a gum; FOS, 2′FL, LNnT, 3′SL, 6′SL, and a gum; GOS, 2′FL, LNnT, 3′SL, 6′SL, and a gum; FOS, GOS, 3′SL, 6′SL, and a gum; FOS, 2′FL, 3′SL, 6′SL, and a gum; FOS, LNnT, 3′SL, 6′SL, and a gum; GOS, 2′FL, 3′SL, 6′SL, and a gum; GOS, LNnT, 3′SL, 6′SL, and a gum; 2′FL, LNnT, 3′SL, 6′SL, and a gum; FOS, 3′SL, 6′SL, and a gum; GOS, 3′SL, 6′SL, and a gum; 2′FL, 3′SL, 6′SL, and a gum; LNnT, 3′SL, 6′SL, and a gum; FOS, GOS, 2′FL, LNnT, 3′SL, and a gum; FOS, GOS, 2′FL, 3′SL, and a gum; FOS, GOS, LNnT, 3′SL, and a gum; FOS, 2′FL, LNnT, 3′SL, and a gum; GOS, 2′FL, LNnT, 3′SL, and a gum; FOS, GOS, 3′SL, and a gum; FOS, 2′FL, 3′SL, and a gum; FOS, LNnT, 3′SL, and a gum; GOS, 2′FL, 3′SL, and a gum; GOS, LNnT, 3′SL, and a gum; 2′FL, LNnT, 3′SL, and a gum; FOS, 3′SL, and a gum; GOS, 3′SL, and a gum; 2′FL, 3′SL, and a gum; LNnT, 3′SL, and a gum; FOS, GOS, 2′FL, LNnT, 6′SL, and a gum; FOS, GOS, 2′FL, 6′SL, and a gum; FOS, GOS, LNnT, 6′SL, and a gum; FOS, 2′FL, LNnT, 6′SL, and a gum; GOS, 2′FL, LNnT, 6′SL, and a gum; FOS, GOS, 6′SL, and a gum; FOS, 2′FL, 6′SL, and a gum; FOS, LNnT, 6′SL, and a gum; GOS, 2′FL, 6′SL, and a gum; GOS, LNnT, 6′SL, and a gum; 2′FL, LNnT, 6′SL, and a gum; FOS, 6′SL, and a gum; GOS, 6′SL, and a gum; 2′FL, 6′SL, and a gum; and LNnT, 6′SL, and a gum.

Probiotics

The nutritional compositions of the present disclosure may, in addition to HMOs (and, optionally, other prebiotic oligosaccharides as described above), comprise one or more probiotics. In some embodiments, the nutritional composition includes a combination of HMOs and probiotics such that the composition provides a synergistic benefit to the end user in promoting the growth of microbiota in the gastrointestinal tract of infants.

Probiotics are live microorganisms thought to be healthy for the host organism. Lactic acid bacteria (LAB) and bifidobacteria are the most common types of microbes used as probiotics. Probiotics maintain the microbial ecology of the gut and show physiological, immuno-modulatory and antimicrobial effects, such that the use of probiotics has been found to prevent and treat gastrointestinal diseases and/or disorders, pathogen-induced diarrhea and toxin-producing bacteria, urogenital infections, and atopic diseases.

In order for microbes to exhibit beneficial probiotic effects in vivo, the organisms should survive for extended time periods in the gastrointestinal tract. Therefore, it is important that probiotic strains be selected that possess qualities that prevent their rapid removal by gut contraction. Effective probiotic strains are able to survive gastric conditions and colonize the intestine, at least temporarily, by adhering to the intestinal epithelium.

Non-limiting examples of probiotic strains for use in the nutritional compositions herein include the genus Lactobacillus including L. acidophilus (e.g., L. acidophilus LA-5 and L. acidophilus NCFM), L. amylovorus, L. brevis, L. bulgaricus, L. casei spp. casei, L. casei spp. rhamnosus, L. crispatus, L. delbrueckii ssp. lactis, L. fermentum (e.g., L. fermentum CETC5716), L. helveticus, L. johnsonii, L. paracasei, L. pentosus, L. plantarum, L. reuteri (e.g., L. reuteri ATCC 55730, L. reuteri ATCC PTA-6475, and L. reuteri DSM 17938), L. sake, and L. rhamnosus (e.g., L. rhamnosus LGG and L. rhamnosus HN001); the genus Bifidobacterium including: B. animalis (e.g., B. animalis spp. lactis Bb-12), B. bifidum, B. breve (e.g., B. breve M-16V), B. infantis (e.g., B. infantis M-63, B. infantis ATCC 15697, B. Infantis 35624, B. infantis CHCC2228, B. infantis BB-02, B. infantis DSM20088, and B. infantis R-0033), B. longum (e.g., B. longum BB536, B. longum AH1205, and B. longum AH1206), and B. lactis (e.g., B. lactis HN019 and B. lactis Bi07); the genus Pediococcus including: P. acidilactici; the genus Propionibacterium including: P. acidipropionici, P. freudenreichii, P. jensenii, and P. theonii; and the genus Streptococcus including: S. cremoris, S. lactis, and S. thermophilus. Particularly preferred probiotics include probiotics of human infant origin such as B. infantis M-63 and B. infantis ATCC 15697.

The probiotic is present in the nutritional compositions in a total amount of at least about 10³ CFU/g, including from about 10³ CFU/g to about 10¹² CFU/g, and including from about 10⁶ CFU/g to about 10⁷ CFU/g.

In some embodiments, the nutritional composition includes a probiotic in combination with a first oligosaccharide including fructooligosaccharide and/or a galactooligosaccharide further in combination with a second oligosaccharide including at least one HMO such as 2′FL, 3′FL, 3′SL, 6′SL, and/or LNnT. In these embodiments, the first oligosaccharide and the second oligosaccharide are present in the compositions in a weight ratio of first oligosaccharide:second oligosaccharide of about 10:1, or even from about 11:1 to about 8:1.

Macronutrients

The nutritional compositions including the HMO or HMOs may be formulated to include at least one of protein, fat, and carbohydrate. In many embodiments, the nutritional compositions will include the HMO or HMOs with protein, carbohydrate and fat.

Although total concentrations or amounts of the fat, protein, and carbohydrates may vary depending upon the product type (i.e., human milk fortifier, preterm infant formula, infant formula, toddler formula, pediatric formula, follow-on formula, adult nutritional, etc.), product form (i.e., nutritional solid, powder, ready-to-feed liquid, or concentrated liquid), and targeted dietary needs of the intended user, such concentrations or amounts most typically fall within one of the following embodied ranges, inclusive of any other essential fat, protein, and/or carbohydrate ingredients as described herein.

For the liquid preterm and term infant formulas, carbohydrate concentrations (including both HMOs and any other carbohydrate/oligosaccharide sources) most typically range from about 5% to about 40%, including from about 7% to about 30%, including from about 10% to about 25%, by weight of the preterm or term infant formula; fat concentrations most typically range from about 1% to about 30%, including from about 2% to about 15%, and also including from about 3% to about 10%, by weight of the preterm or term infant formula; and protein concentrations most typically range from about 0.5% to about 30%, including from about 1% to about 15%, and also including from about 2% to about 10%, by weight of the preterm or term infant formula.

For the liquid human milk fortifiers, carbohydrate concentrations (including both HMOs and any other carbohydrate/oligosaccharide sources) most typically range from about 10% to about 75%, including from about 10% to about 50%, including from about 20% to about 40%, by weight of the human milk fortifier; fat concentrations most typically range from about 10% to about 40%, including from about 15% to about 37%, and also including from about 18% to about 30%, by weight of the human milk fortifier; and protein concentrations most typically range from about 5% to about 40%, including from about 10% to about 30%, and also including from about 15% to about 25%, by weight of the human milk fortifier.

For the adult nutritional liquids, carbohydrate concentrations (including both HMOs and any other carbohydrate/oligosaccharide sources) most typically range from about 5% to about 40%, including from about 7% to about 30%, including from about 10% to about 25%, by weight of the adult nutritional; fat concentrations most typically range from about 2% to about 30%, including from about 3% to about 15%, and also including from about 5% to about 10%, by weight of the adult nutritional; and protein concentrations most typically range from about 0.5% to about 30%, including from about 1% to about 15%, and also including from about 2% to about 10%, by weight of the adult nutritional.

The amount of carbohydrates, fats, and/or proteins in any of the liquid nutritional compositions described herein may also be characterized in addition to, or in the alternative, as a percentage of total calories in the liquid nutritional composition as set forth in the following table. These macronutrients for liquid nutritional compositions of the present disclosure are most typically formulated within any of the caloric ranges (embodiments A-F) described in the following table (each numerical value is preceded by the term “about”).

Nutrient % Total Cal. Embodiment A Embodiment B Embodiment C Carbohydrate 0-98 2-96 10-75 Protein 0-98 2-96  5-70 Fat 0-98 2-96 20-85 Embodiment D Embodiment E Embodiment F Carbohydrate 30-50 25-50 25-50  Protein 15-35 10-30 5-30 Fat 35-55  1-20 2-20

In one specific example, liquid infant formulas (both ready-to-feed and concentrated liquids) include those embodiments in which the protein component may comprise from about 7.5% to about 25% of the caloric content of the formula; the carbohydrate component (including both HMOs and any other carbohydrate/oligosaccharide sources) may comprise from about 35% to about 50% of the total caloric content of the infant formula; and the fat component may comprise from about 30% to about 60% of the total caloric content of the infant formula. These ranges are provided as examples only, and are not intended to be limiting. Additional suitable ranges are noted in the following table (each numerical value is preceded by the term “about”).

Nutrient % Total Cal. Embodiment G Embodiment H Embodiment I Carbohydrates: 20-85  30-60 35-55 Fat: 5-70 20-60 25-50 Protein: 2-75  5-50  7-40

When the nutritional composition is a powdered preterm or term infant formula, the protein component is present in an amount of from about 5% to about 35%, including from about 8% to about 12%, and including from about 10% to about 12% by weight of the preterm or term infant formula; the fat component is present in an amount of from about 10% to about 35%, including from about 25% to about 30%, and including from about 26% to about 28% by weight of the preterm or term infant formula; and the carbohydrate component (including both HMOs and any other carbohydrate/oligosaccharide sources) is present in an amount of from about 30% to about 85%, including from about 45% to about 60%, including from about 50% to about 55% by weight of the preterm or term infant formula.

For powdered human milk fortifiers, the protein component is present in an amount of from about 1% to about 55%, including from about 10% to about 50%, and including from about 10% to about 30% by weight of the human milk fortifier; the fat component is present in an amount of from about 1% to about 30%, including from about 1% to about 25%, and including from about 1% to about 20% by weight of the human milk fortifier; and the carbohydrate component (including both HMOs and any other carbohydrate/oligosaccharide sources) is present in an amount of from about 15% to about 75%, including from about 15% to about 60%, including from about 20% to about 50% by weight of the human milk fortifier.

For powdered adult nutritionals, the protein component is present in an amount of from about 10% to about 90%, including from about 30% to about 80%, and including from about 40% to about 75% by weight of the adult nutritional; the fat component is present in an amount of from about 0.5% to about 20%, including from about 1% to about 10%, and including from about 2% to about 5% by weight of the adult nutritional; and the carbohydrate component (including both HMOs and any other carbohydrate/oligosaccharide sources) is present in an amount of from about 5% to about 40%, including from about 7% to about 30%, including from about 10% to about 25% by weight of the adult nutritional.

The total amount or concentration of fat, carbohydrate, and protein, in the powdered nutritional compositions of the present disclosure can vary considerably depending upon the selected composition and dietary or medical needs of the intended user. Additional suitable examples of macronutrient concentrations are set forth below. In this context, the total amount or concentration refers to all fat, carbohydrate, and protein sources in the powdered composition. For powdered nutritional compositions, such total amounts or concentrations are most typically and preferably formulated within any of the embodied ranges described in the following table (each numerical value is preceded by the term “about’).

Nutrient % Total Cal. Embodiment J Embodiment K Embodiment L Carbohydrate 1-85 30-60 35-55 Fat 5-70 20-60 25-50 Protein 2-75  5-50  7-40

Fat

The nutritional compositions of the present disclosure may optionally comprise any source or sources of fat. Suitable sources of fat for use herein include any fat or fat source that is suitable for use in an oral nutritional composition and is compatible with the essential elements and features of such composition. For example, in one specific embodiment, the fat is derived from long chain polyunsaturated fatty acids (LCPUFAs).

Exemplary LCPUFAs for use in the nutritional compositions include, for example, ω-3 LCPUFAs and ω-6 LCPUFAs. Specific LCPUFAs include docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), arachidonic acid (ARA), linoleic acid, linolenic acid (alpha linolenic acid) and gamma-linolenic acid derived from oil sources such as plant oils, marine plankton, fungal oils, and fish oils. In one particular embodiment, the LCPUFAs are derived from fish oils such as menhaden, salmon, anchovy, cod, halibut, tuna, or herring oil. Particularly preferred LCPUFAs for use in the nutritional compositions with the HMOs include DHA, ARA, EPA, and combinations thereof.

In order to reduce potential side effects of high dosages of LCPUFAs in the nutritional compositions, the content of LCPUFAs preferably does not exceed 3% by weight of the total fat content, including below 2% by weight of the total fat content, and including below 1% by weight of the total fat content in the nutritional composition.

The LCPUFA may be provided as free fatty acids, in triglyceride form, in diglyceride form, in monoglyceride form, in phospholipid form, in esterified form or as a mixture of one or more of the above, preferably in triglyceride form. In another specific embodiment, the fat is derived from short chain fatty acids.

Additional non-limiting examples of suitable fats or sources thereof for use in the nutritional compositions described herein include coconut oil, fractionated coconut oil, soybean oil, corn oil, olive oil, safflower oil, high oleic safflower oil, oleic acids (EMERSOL 6313 OLEIC ACID, Cognis Oleochemicals, Malaysia), MCT oil (medium chain triglycerides), sunflower oil, high oleic sunflower oil, palm and palm kernel oils, palm olein, canola oil, marine oils, fish oils, fungal oils, algae oils, cottonseed oils, and combinations thereof.

Protein

The nutritional compositions of the present disclosure may optionally further comprise protein. Any protein source that is suitable for use in oral nutritional compositions and is compatible with the essential elements and features of such compositions is suitable for use in the nutritional compositions.

Non-limiting examples of suitable proteins or sources thereof for use in the nutritional compositions include hydrolyzed, partially hydrolyzed or non-hydrolyzed proteins or protein sources, which may be derived from any known or otherwise suitable source such as milk (e.g., casein, whey), animal (e.g., meat, fish), cereal (e.g., rice, corn), vegetable (e.g., soy) or combinations thereof. Non-limiting examples of such proteins include milk protein isolates, milk protein concentrates as described herein, casein protein isolates, extensively hydrolyzed casein, whey protein, sodium or calcium caseinates, whole cow milk, partially or completely defatted milk, soy protein isolates, soy protein concentrates, and so forth. In one specific embodiment, the nutritional compositions include a protein source derived from milk proteins of human and/or bovine origin.

In one embodiment, the protein source is a hydrolyzed protein hydrolysate. In this context, the terms “hydrolyzed protein” or “protein hydrolysates” are used interchangeably herein and include extensively hydrolyzed proteins, wherein the degree of hydrolysis is most often at least about 20%, including from about 20% to about 80%, and also including from about 30% to about 80%, even more preferably from about 40% to about 60%. The degree of hydrolysis is the extent to which peptide bonds are broken by a hydrolysis method. The degree of protein hydrolysis for purposes of characterizing the extensively hydrolyzed protein component of these embodiments is easily determined by one of ordinary skill in the formulation arts by quantifying the amino nitrogen to total nitrogen ratio (AN/TN) of the protein component of the selected liquid formulation. The amino nitrogen component is quantified by USP titration methods for determining amino nitrogen content, while the total nitrogen component is determined by the Tecator Kjeldahl method, all of which are well known methods to one of ordinary skill in the analytical chemistry art.

Suitable hydrolyzed proteins may include soy protein hydrolysate, casein protein hydrolysate, whey protein hydrolysate, rice protein hydrolysate, potato protein hydrolysate, fish protein hydrolysate, egg albumen hydrolysate, gelatin protein hydrolysate, combinations of animal and vegetable protein hydrolysates, and combinations thereof. Particularly preferred protein hydrolysates include whey protein hydrolysate and hydrolyzed sodium caseinate.

When used in the nutritional compositions, the protein source may include at least about 20% (by weight total protein) protein hydrolysate, including from about 30% to 100% (by weight total protein) protein hydrolysate, and including from about 40% to about 80% (by weight total protein) protein hydrolysate, and including about 50% (by weight total protein) protein hydrolysate. In one particular embodiment, the nutritional composition includes 100% (by weight total protein) protein hydrolysate.

Carbohydrate

The nutritional compositions of the present disclosure may further optionally comprise any carbohydrates that are suitable for use in an oral nutritional composition and are compatible with the essential elements and features of such compositions.

Non-limiting examples of suitable carbohydrates or sources thereof for use in the nutritional compositions described herein may include maltodextrin, hydrolyzed or modified starch or cornstarch, glucose polymers, corn syrup, corn syrup solids, rice-derived carbohydrates, pea-derived carbohydrates, potato-derived carbohydrates, tapioca, sucrose, glucose, fructose, lactose, high fructose corn syrup, honey, sugar alcohols (e.g., maltitol, erythritol, sorbitol), artificial sweeteners (e.g., sucralose, acesulfame potassium, stevia) and combinations thereof. A particularly desirable carbohydrate is a low dextrose equivalent (DE) maltodextrin.

Other Optional Ingredients

The nutritional compositions of the present disclosure may further comprise other optional components that may modify the physical, chemical, aesthetic or processing characteristics of the compositions or serve as pharmaceutical or additional nutritional components when used in the targeted population. Many such optional ingredients are known or otherwise suitable for use in medical food or other nutritional products or pharmaceutical dosage forms and may also be used in the compositions herein, provided that such optional ingredients are safe for oral administration and are compatible with the essential and other ingredients in the selected product form.

Non-limiting examples of such optional ingredients include preservatives, emulsifying agents, buffers, postbiotics, pharmaceutical actives, anti-inflammatory agents, additional nutrients as described herein, colorants, flavors, thickening agents and stabilizers, emulsifying agents, lubricants, and so forth.

The nutritional compositions may further comprise a sweetening agent, preferably including at least one sugar alcohol such as maltitol, erythritol, sorbitol, xylitol, mannitol, isolmalt, and lactitol, and also preferably including at least one artificial or high potency sweetener such as acesulfame K, aspartame, sucralose, saccharin, stevia, and tagatose. These sweetening agents, especially as a combination of a sugar alcohol and an artificial sweetener, are especially useful in formulating liquid beverage embodiments of the present disclosure having a desirable favor profile. These sweetener combinations are especially effective in masking undesirable flavors sometimes associated with the addition of vegetable proteins to a liquid beverage. Optional sugar alcohol concentrations in the nutritional composition may range from at least 0.01%, including from 0.1% to about 10%, and also including from about 1% to about 6%, by weight of the nutritional composition. Optional artificial sweetener concentrations may range from about 0.01%, including from about 0.05% to about 5%, also including from about 0.1% to about 1.0%, by weight of the nutritional composition.

A flowing agent or anti-caking agent may be included in the nutritional compositions as described herein to retard clumping or caking of the powder over time and to make a powder embodiment flow easily from its container. Any known flowing or anti-caking agents that are known or otherwise suitable for use in a nutritional powder or product form are suitable for use herein, non-limiting examples of which include tricalcium phosphate, silicates, and combinations thereof. The concentration of the flowing agent or anti-caking agent in the nutritional composition varies depending upon the product form, the other selected ingredients, the desired flow properties, and so forth, but most typically range from about 0.1% to about 4%, including from about 0.5% to about 2%, by weight of the nutritional composition.

A stabilizer may also be included in the nutritional compositions. Any stabilizer that is known or otherwise suitable for use in a nutritional composition is also suitable for use herein, some non-limiting examples of which include gums such as xanthan gum. The stabilizer may represent from about 0.1% to about 5.0%, including from about 0.5% to about 3%, including from about 0.7% to about 1.5%, by weight of the nutritional composition.

Additionally, the nutritional compositions may comprise one or more antioxidants to provide nutritional support, as well as to reduce oxidative stress. Any antioxidants suitable for oral administration may be included for use in the nutritional compositions of the present disclosure, including, for example, ascorbyl palmitate, vitamin A, vitamin E, vitamin C, retinol, tocopherol, carotenoids, polyphenols (e.g., curcumin), glutathione, and superoxide dismutase.

In one specific embodiment, the antioxidants for use in the nutritional compositions include carotenoids such as lutein, zeaxanthin, lycopene, beta-carotene, and combinations thereof, and particularly, combinations of the carotenoids lutein, lycopene, and beta-carotene. Nutritional compositions containing these combinations, as selected and defined herein, can be used to modulate inflammation and/or levels of C-reactive protein in preterm and term infants.

The nutritional compositions may further comprise any of a variety of other water or fat soluble vitamins or related nutrients, non-limiting examples of which include vitamin D, vitamin K, thiamine, riboflavin, pyridoxine, vitamin B₁₂, niacin, folic acid, pantothenic acid, biotin, choline, inositol, salts and derivatives thereof, and combinations thereof.

The nutritional compositions may further comprise any of a variety of other additional minerals and trace elements, non-limiting examples of which include calcium, phosphorus, magnesium, iron, zinc, manganese, copper, sodium, potassium, molybdenum, chromium, chloride, and combinations thereof.

The nutritional compositions of the present disclosure may additionally comprise nucleotides and/or nucleotide precursors selected from the group consisting of nucleoside, purine base, pyrimidine base, ribose and deoxyribose to further improve intestinal barrier integrity and/or maturation. The nucleotide may be in monophosphate, diphosphate, or triphosphate form. The nucleotide may be a ribonucleotide or a deoxyribonucleotide. The nucleotides may be monomeric, dimeric, or polymeric (including RNA and DNA). The nucleotide may be present in the nutritional composition as a free acid or in the form of a salt, preferably a monosodium salt.

Suitable nucleotides and/or nucleosides for use in the nutritional compositions include one or more of cytidine 5′-monophosphate, uridine 5′-monophosphate, adenosine 5′-monophosphate, guanosine 5′-1-monophosphate, and/or inosine 5′-monophosphate, more preferably cytidine 5′-monophosphate, uridine 5′-monophosphate, adenosine 5′-monophosphate, guanosine 5′-monophosphate, and inosine 5′-monophosphate.

The nutritional compositions of the present disclosure may additionally comprise bioactive factors, such as growth hormones or cytokines, of human and/or bovine milk origin, tributyrin, other SCFA-containing mono-, di-, or triglycerides, or human milk-derived lipids.

Methods of Manufacture

The nutritional compositions of the present disclosure may be prepared by any known or otherwise effective manufacturing technique for preparing the selected product solid or liquid form. Many such techniques are known for any given product form such as nutritional liquids or powders and can easily be applied by one of ordinary skill in the art to the nutritional compositions described herein.

The nutritional compositions of the present disclosure can therefore be prepared by any of a variety of known or otherwise effective formulation or manufacturing methods. In one suitable manufacturing process, for example, at least three separate slurries are prepared, including a protein-in-fat (PIF) slurry, a carbohydrate-mineral (CHO-MIN) slurry, and a protein-in-water (PIW) slurry. The PIF slurry is formed by heating and mixing the oil (e.g., canola oil, corn oil, etc.) and then adding an emulsifier (e.g., lecithin), fat soluble vitamins, and a portion of the total protein (e.g., milk protein concentrate, etc.) with continued heat and agitation. The CHO-MIN slurry is formed by adding with heated agitation to water: minerals (e.g., potassium citrate, dipotassium phosphate, sodium citrate, etc.), trace and ultra trace minerals (TM/UTM premix), thickening or suspending agents (e.g. avicel, gellan, carrageenan). The resulting CHO-MIN slurry is held for 10 minutes with continued heat and agitation before adding additional minerals (e.g., potassium chloride, magnesium carbonate, potassium iodide, etc.), and/or carbohydrates (e.g., HMOs, fructooligosaccharide, sucrose, corn syrup, etc.). The PIW slurry is then formed by mixing with heat and agitation the remaining protein, if any.

The resulting slurries are then blended together with heated agitation and the pH adjusted to 6.6-7.0, after which the composition is subjected to high-temperature short-time (HTST) processing during which the composition is heat treated, emulsified and homogenized, and then allowed to cool. Water soluble vitamins and ascorbic acid are added, the pH is adjusted to the desired range if necessary, flavors are added, and water is added to achieve the desired total solid level. The composition is then aseptically packaged to form an aseptically packaged nutritional emulsion. This emulsion can then be further diluted, heat-treated, and packaged to form a ready-to-feed or concentrated liquid, or it can be heat-treated and subsequently processed and packaged as a reconstitutable powder, e.g., spray dried, drymixed, agglomerated.

The nutritional solid, such as a spray dried nutritional powder or drymixed nutritional powder, may be prepared by any collection of known or otherwise effective techniques, suitable for making and formulating a nutritional powder.

For example, when the nutritional powder is a spray dried nutritional powder, the spray drying step may likewise include any spray drying technique that is known for or otherwise suitable for use in the production of nutritional powders. Many different spray drying methods and techniques are known for use in the nutrition field, all of which are suitable for use in the manufacture of the spray dried nutritional powders herein.

One method of preparing the spray dried nutritional powder comprises forming and homogenizing an aqueous slurry or liquid comprising predigested fat, and optionally protein, carbohydrate, and other sources of fat, and then spray drying the slurry or liquid to produce a spray dried nutritional powder. The method may further comprise the step of spray drying, drymixing, or otherwise adding additional nutritional ingredients, including any one or more of the ingredients described herein, to the spray dried nutritional powder.

Other suitable methods for making nutritional compositions are described, for example, in U.S. Pat. No. 6,365,218 (Borschel, et al.), U.S. Pat. No. 6,589,576 (Borschel, et al.), U.S. Pat. No. 6,306,908 (Carlson, et al.), U.S. Patent Application No. 20030118703 A1 (Nguyen, et al.), which descriptions are incorporated herein by reference to the extent that they are consistent herewith.

Methods of Use

The nutritional compositions as described herein can be used to address one or more of the diseases, disorders, or conditions discussed herein, or can be used to provide one or more of the benefits described herein, to preterm infants, infants, toddlers, children, and adults, including pregnant women. The preterm infant, infant, toddler, child, adult and pregnant women utilizing the nutritional compositions described herein may actually have or be afflicted with the disease or condition described, or may be susceptible to, or at risk of, getting the disease or condition (that is, may not actually yet have the disease or condition, but is at elevated risk as compared to the general population for getting it due to certain conditions, family history, etc.) Whether the preterm infant, infant, toddler, child, adult, and pregnant women actually have the disease or condition, or is at risk or susceptible to the disease or condition, the preterm infant, infant, toddler, child, adult, and pregnant women are classified herein as “in need of” assistance in dealing with and combating the disease or condition. For example, the preterm infant, infant, toddler, child, adult and pregnant women may actually have respiratory inflammation or may be at risk of getting respiratory inflammation (susceptible to getting respiratory inflammation) due to family history or other medical conditions, for example. Whether the preterm infant, infant, toddler, child, adult, and pregnant women actually has the disease or condition, or is only at risk or susceptible to getting the disease or condition, it is within the scope of the present disclosure to assist the preterm infant, infant, toddler, child, adult and pregnant women with the nutritional compositions described herein.

Based on the foregoing, because some of the method embodiments of the present disclosure are directed to specific subsets or subclasses of identified individuals (that is, the subset or subclass of individuals “in need” of assistance in addressing one or more specific diseases or specific conditions noted herein), not all preterm infants, infants, toddlers, children, adults and pregnant women will fall within the subset or subclass of preterm infants, infants, toddlers, children, adults, and pregnant women as described herein for certain diseases or conditions.

The nutritional compositions as described herein comprise HMOs, alone or in combination with one or more additional components, to provide a nutritional source for improving at least the intestinal/gut function. Specifically, the nutritional compositions can stimulate enteric nerve cells in the gastrointestinal tract of an individual to improve intestinal/gut barrier integrity; improve feeding tolerance (e.g., reduce feeding intolerance, reduce diarrhea, loose stools, gas, and bloating); reduce colic in infants; promote tolerance to enteral feeding, decrease time to full enteral feeding, increase the rate of advancement of enteral feeding, decrease the amount and duration of partial or total parenteral nutrition, protect against necrotizing enterocolitis and other disorders of prematurity; address gastrointestinal diseases and disorders associated with the enteric nervous system; address gastrointestinal diseases and disorders of gut contractility and inflammation; correct effects of gut dysbiosis; and affect long-term modulation of allergic tolerance.

More particularly, in some embodiments, the nutritional compositions may be administered to an individual having, susceptible to, or at risk of, gastrointestinal diseases and disorders associated with the enteric nervous system and/or associated with gut contractility and inflammation, which may include, for example, irritable bowel syndrome, colitis (e.g., necrotizing enterocolitis, Crohn's disease, ischemic colitis, cryptosporidium enterocolitis, pseudomembranous colitis, cytomegalovirus, ulcerative colitis), food intolerance, and food allergies.

Along with improved growth and maturation of an individual's immune system as described above, the use of the nutritional compositions of the present disclosure may also function to enhance the individual's ability to resist microbial infection and to promote the growth of beneficial microbiota in the gastrointestinal tract of an infant, toddler, child, or adult.

Additionally, the nutritional compositions of the present disclosure may also be used to improve cognition in individuals, particularly in individuals susceptible to, or at risk of, neurodegenerative diseases, which may include, for example, Alzheimer's disease, Huntington's disease, Parkinson's disease, and schizophrenia, or in individuals suffering from conditions caused by impaired cognitive development, or neurodevelopmental conditions, such as attention deficit hyperactivity disorder and autism.

EXAMPLES

The following examples illustrate specific embodiments and/or features of the nutritional compositions and methods of the present disclosure. The examples are given solely for the purpose of illustration and are not to be construed as limitations of the present disclosure, as many variations thereof are possible without departing from the spirit and scope of the disclosure. All exemplified amounts are weight percentages based upon the total weight of the composition, unless otherwise specified.

The exemplified compositions are shelf stable nutritional compositions prepared in accordance with the manufacturing methods described herein, such that each exemplified composition, unless otherwise specified, includes an aseptically processed embodiment and a retort packaged embodiment.

The nutritional liquid embodiments are aqueous oil-in-water emulsions that are packaged in 240 mL plastic containers and remain physically stable for 12-18 months after composition/packaging at storage temperatures ranging from 1-25° C.

Examples 1-5

Examples 1-5 illustrate ready-to-feed nutritional emulsions of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Water Q.S. Q.S. Q.S. Q.S. Q.S. Condensed Skim Milk 86.64 86.64 86.64 86.64 86.64 Lactose 54.80 54.80 54.80 54.80 54.80 High oleic safflower oil 14.10 14.10 14.10 14.10 14.10 Soybean oil 10.6 10.6 10.6 10.6 10.6 Coconut oil 10.1 10.1 10.1 10.1 10.1 2′ fucosyllactose (2′FL) 0.1896 0.1801 0.1706 0.1991 0.2086 Galactooligosaccharides (GOS) 8.630 8.630 8.630 8.630 8.630 Whey protein concentrate 6.40 6.40 6.40 6.40 6.40 Potassium citrate 478.9 g 478.9 g 478.9 g 478.9 g 478.9 g Calcium carbonate 448.28 g 448.28 g 448.28 g 448.28 g 448.28 g Soy lecithin 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g Stabilizer 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g ARA oil 368.01 g 368.01 g 368.01 g 368.01 g 368.01 g Nucleotide/chloride premix 293.26 g 293.26 g 293.26 g 293.26 g 293.26 g Potassium chloride 226.45 g 226.45 g 226.45 g 226.45 g 226.45 g Ascorbic acid 445.94 g 445.94 g 445.94 g 445.94 g 445.94 g Vitamin mineral premix 142.88 g 142.88 g 142.88 g 142.88 g 142.88 g DHA oil 137.8 g 137.8 g 137.8 g 137.8 g 137.8 g Carrageenan 180.0 g 180.0 g 180.0 g 180.0 g 180.0 g Magnesium chloride 55.0 g 55.0 g 55.0 g 55.0 g 55.0 g Ferrous sulfate 58.0 g 58.0 g 58.0 g 58.0 g 58.0 g Choline chloride 53.9 g 53.9 g 53.9 g 53.9 g 53.9 g Vitamin A, D₃, E, K₁ premix 47.40 g 47.40 g 47.40 g 47.40 g 47.40 g Citric acid 29.77 g 29.77 g 29.77 g 29.77 g 29.77 g Probiotic 1.0 1.0 1.0 1.0 1.0 Mixed carotenoid premix 26.40 g 26.40 g 26.40 g 26.40 g 26.40 g Sodium chloride AN AN AN AN AN L-carnitine 3.31 g 3.31 g 3.31 g 3.31 g 3.31 g Tricalcium phosphate 15.65 g 15.65 g 15.65 g 15.65 g 15.65 g Potassium phosphate monobasic 13.67 g 13.67 g 13.67 g 13.67 g 13.67 g Riboflavin 2.42 g 2.42 g 2.42 g 2.42 g 2.42 g Potassium hydroxide AN AN AN AN AN AN = as needed

Examples 6-10

Examples 6-10 illustrate ready-to-feed nutritional emulsions of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient Ex. 6 Ex. 7 Ex. 8 Ex. 9 Ex. 10 Water Q.S. Q.S. Q.S. Q.S. Q.S. Condensed Skim Milk 86.64 86.64 86.64 86.64 86.64 Lactose 54.80 54.80 54.80 54.80 54.80 High oleic safflower oil 14.10 14.10 14.10 14.10 14.10 Soybean oil 10.6 10.6 10.6 10.6 10.6 Coconut oil 10.1 10.1 10.1 10.1 10.1 2′ fucosyllactose (2′FL) 0.0182 0.18 4.5455 1.818 18.0 Galactooligosaccharides (GOS) 0.1818 0.02 4.5455 18.182 2.0 Whey protein concentrate 6.40 6.40 6.40 6.40 6.40 Potassium citrate 478.9 g 478.9 g 478.9 g 478.9 g 478.9 g Calcium carbonate 448.28 g 448.28 g 448.28 g 448.28 g 448.28 g Soy lecithin 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g Stabilizer 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g ARA oil 368.01 g 368.01 g 368.01 g 368.01 g 368.01 g Nucleotide/chloride premix 293.26 g 293.26 g 293.26 g 293.26 g 293.26 g Potassium chloride 226.45 g 226.45 g 226.45 g 226.45 g 226.45 g Ascorbic acid 445.94 g 445.94 g 445.94 g 445.94 g 445.94 g Vitamin mineral premix 142.88 g 142.88 g 142.88 g 142.88 g 142.88 g DHA oil 137.8 g 137.8 g 137.8 g 137.8 g 137.8 g Carrageenan 180.0 g 180.0 g 180.0 g 180.0 g 180.0 g Magnesium chloride 55.0 g 55.0 g 55.0 g 55.0 g 55.0 g Ferrous sulfate 58.0 g 58.0 g 58.0 g 58.0 g 58.0 g Choline chloride 53.9 g 53.9 g 53.9 g 53.9 g 53.9 g Vitamin A, D₃, E, K₁ premix 47.40 g 47.40 g 47.40 g 47.40 g 47.40 g Citric acid 29.77 g 29.77 g 29.77 g 29.77 g 29.77 g Probiotic 1.0 1.0 1.0 1.0 1.0 Mixed carotenoid premix 26.40 g 26.40 g 26.40 g 26.40 g 26.40 g Sodium chloride AN AN AN AN AN L-carnitine 3.31 g 3.31 g 3.31 g 3.31 g 3.31 g Tricalcium phosphate 15.65 g 15.65 g 15.65 g 15.65 g 15.65 g Potassium phosphate monobasic 13.67 g 13.67 g 13.67 g 13.67 g 13.67 g Riboflavin 2.42 g 2.42 g 2.42 g 2.42 g 2.42 g Potassium hydroxide AN AN AN AN AN AN = as needed

Examples 11-15

Examples 11-15 illustrate ready-to-feed nutritional emulsions of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient Ex. 11 Ex. 12 Ex. 13 Ex. 14 Ex. 15 Water Q.S. Q.S. Q.S. Q.S. Q.S. Condensed Skim Milk 86.64 86.64 86.64 86.64 86.64 Lactose 54.80 54.80 54.80 54.80 54.80 High oleic safflower oil 14.10 14.10 14.10 14.10 14.10 Soybean oil 10.6 10.6 10.6 10.6 10.6 Coconut oil 10.1 10.1 10.1 10.1 10.1 2′ fucosyllactose (2′FL) 0.0948 0.09005 0.0853 0.0995 0.1043 Lacto-N-neotetraose (LNnT) 0.0948 0.09005 0.0853 0.0995 0.1043 Galactooligosaccharides (GOS) 8.630 8.630 8.630 8.630 8.630 Whey protein concentrate 6.40 6.40 6.40 6.40 6.40 Potassium citrate 478.9 g 478.9 g 478.9 g 478.9 g 478.9 g Calcium carbonate 448.28 g 448.28 g 448.28 g 448.28 g 448.28 g Soy lecithin 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g Stabilizer 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g ARA oil 368.01 g 368.01 g 368.01 g 368.01 g 368.01 g Nucleotide/chloride premix 293.26 g 293.26 g 293.26 g 293.26 g 293.26 g Potassium chloride 226.45 g 226.45 g 226.45 g 226.45 g 226.45 g Ascorbic acid 445.94 g 445.94 g 445.94 g 445.94 g 445.94 g Vitamin mineral premix 142.88 g 142.88 g 142.88 g 142.88 g 142.88 g DHA oil 137.8 g 137.8 g 137.8 g 137.8 g 137.8 g Carrageenan 180.0 g 180.0 g 180.0 g 180.0 g 180.0 g Magnesium chloride 55.0 g 55.0 g 55.0 g 55.0 g 55.0 g Ferrous sulfate 58.0 g 58.0 g 58.0 g 58.0 g 58.0 g Choline chloride 53.9 g 53.9 g 53.9 g 53.9 g 53.9 g Vitamin A, D₃, E, K₁ premix 47.40 g 47.40 g 47.40 g 47.40 g 47.40 g Citric acid 29.77 g 29.77 g 29.77 g 29.77 g 29.77 g Probiotic 1.0 0.95 0.90 1.05 1.10 Mixed carotenoid premix 26.40 g 26.40 g 26.40 g 26.40 g 26.40 g Sodium chloride AN AN AN AN AN L-carnitine 3.31 g 3.31 g 3.31 g 3.31 g 3.31 g Tricalcium phosphate 15.65 g 15.65 g 15.65 g 15.65 g 15.65 g Potassium phosphate monobasic 13.67 g 13.67 g 13.67 g 13.67 g 13.67 g Riboflavin 2.42 g 2.42 g 2.42 g 2.42 g 2.42 g Potassium hydroxide AN AN AN AN AN AN = as needed

Examples 16-20

Examples 16-20 illustrate concentrated liquid emulsions of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient Ex. 16 Ex. 17 Ex. 18 Ex. 19 Ex. 20 Water Q.S. Q.S. Q.S. Q.S. Q.S. Condensed Skim Milk 166.6 166.6 166.6 166.6 166.6 Lactose 106.1 106.1 106.1 106.1 106.1 High oleic safflower oil 27.16 27.16 27.16 27.16 27.16 Soybean oil 20.42 20.42 20.42 20.42 20.42 Coconut oil 19.48 19.48 19.48 19.48 19.48 2′ fucosyllactose (2′FL) 0.1896 0.1188 0.0853 0.2414 0.2560 Galactooligosaccharides (GOS) 16.71 16.71 16.71 16.71 16.71 Whey protein concentrate 12.20 12.20 12.20 12.20 12.20 Potassium citrate 894.5 g 894.5 g 894.5 g 894.5 g 894.5 g Calcium carbonate 1.072 1.072 1.072 1.072 1.072 Monoglycerides 690.0 g 690.0 g 690.0 g 690.0 g 690.0 g Soy lecithin 690.0 g 690.0 g 690.0 g 690.0 g 690.0 g ARA oil 684.2 g 684.2 g 684.2 g 684.2 g 684.2 g Nucleotide/chloride premix 568.9 g 568.9 g 568.9 g 568.9 g 568.9 g Potassium chloride 480.8 g 480.8 g 480.8 g 480.8 g 480.8 g Ascorbic acid 958.6 g 958.6 g 958.6 g 958.6 g 958.6 g Vitamin mineral premix 276.9 g 276.9 g 276.9 g 276.9 g 276.9 g DHA oil 256.1 g 256.1 g 256.1 g 256.1 g 256.1 g Carrageenan 200.0 g 200.0 g 200.0 g 200.0 g 200.0 g Magnesium chloride 174.7 g 174.7 g 174.7 g 174.7 g 174.7 g Ferrous sulfate 112.7 g 112.7 g 112.7 g 112.7 g 112.7 g Choline chloride 104.8 g 104.8 g 104.8 g 104.8 g 104.8 g Vitamin A, D₃, E, K₁ premix 86.90 g 86.90 g 86.90 g 86.90 g 86.90 g Citric acid 64.55 g 64.55 g 64.55 g 64.55 g 64.55 g Mixed carotenoid premix 45.63 g 45.63 g 45.63 g 45.63 g 45.63 g Sodium chloride AN AN AN AN AN L-carnitine 6.371 g 6.371 g 6.371 g 6.371 g 6.371 g Riboflavin 2.921 g 2.921 g 2.921 g 2.921 g 2.921 g Vitamin A Palmitate 1.504 g 1.504 g 1.504 g 1.504 g 1.504 g Potassium hydroxide 659.8 g 659.8 g 659.8 g 659.8 g 659.8 g Tricalcium phosphate AN AN AN AN AN Potassium phosphate monobasic AN AN AN AN AN AN = as needed

Examples 21-25

Examples 21-25 illustrate spray dried nutritional powders of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient Ex. 21 Ex. 22 Ex. 23 Ex. 24 Ex. 25 Nonfat dry milk 456.9 456.9 456.9 456.9 456.9 Lactose 259.0 259.0 259.0 259.0 259.0 High oleic sunflower oil 93.9 93.9 93.9 93.9 93.9 Soy oil 70.4 70.4 70.4 70.4 70.4 Coconut oil 67.1 67.1 67.1 67.1 67.1 2′ fucosyllactose (2′FL) 0.7584 0.7204 0.6824 0.7964 0.8344 Galactooligosaccharide (GOS) 53.5 53.5 53.5 53.5 53.5 Probiotic 1.0 0.95 0.90 1.05 1.10 Flavoring agent 6.2 6.2 6.2 6.2 6.2 Calcium carbonate 4.8 4.8 4.8 4.8 4.8 Potassium citrate 4.7 4.7 4.7 4.7 4.7 Oligofructose 2.9 2.9 2.9 2.9 2.9 Ascorbic acid 2.0 2.0 2.0 2.0 2.0 Nucleotide/Choline Premix 1.8 1.8 1.8 1.8 1.8 ARA oil 1.8 1.8 1.8 1.8 1.8 Vitamin/Trace Mineral Premix 1.5 1.5 1.5 1.5 1.5 Sodium chloride 1.3 1.3 1.3 1.3 1.3 Lecithin 1.2 1.2 1.2 1.2 1.2 Sodium citrate 982.2 g 982.2 g 982.2 g 982.2 g 982.2 g DHA oil 882.1 g 882.1 g 882.1 g 882.1 g 882.1 g Magnesium chloride 477.4 g 477.4 g 477.4 g 477.4 g 477.4 g Vitamin A, D3, E, K1 Premix 314.7 g 314.7 g 314.7 g 314.7 g 314.7 g Ascorbyl Palmitate 278.8 g 278.8 g 278.8 g 278.8 g 278.8 g Antioxidant 137.3 g 137.3 g 137.3 g 137.3 g 137.3 g Tocopheryl acetate  32.0 g  32.0 g  32.0 g  32.0 g  32.0 g Beta-carotene 30%  11.0 g  11.0 g  11.0 g  11.0 g  11.0 g Potassium iodide  2.5 g  2.5 g  2.5 g  2.5 g  2.5 g Riboflavin  2.0 g  2.0 g  2.0 g  2.0 g  2.0 g Magnesium sulfate  499.5 mg  499.5 mg  499.5 mg  499.5 mg  499.5 mg Potassium phosphate dibasic AN AN AN AN AN Potassium chloride AN AN AN AN AN Tricalcium phosphate AN AN AN AN AN Potassium hydroxide AN AN AN AN AN Calcium hydroxide AN AN AN AN AN Sodium hydroxide AN AN AN AN AN Water Q.S. Q.S. Q.S. Q.S. Q.S. AN = as needed

Examples 26-30

Examples 26-30 illustrate spray dried nutritional powders of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient Ex. 26 Ex. 27 Ex. 28 Ex. 29 Ex. 30 Water Q.S. Q.S. Q.S. Q.S. Q.S. Corn syrup 308.9 308.9 308.9 308.9 308.9 Maltodextrin 297.1 297.1 297.1 297.1 297.1 Sucrose 112.4 112.4 112.4 112.4 112.4 High Oleic sunflower oil 84.9 84.9 84.9 84.9 84.9 Sodium caseinate 73.0 73.0 73.0 73.0 73.0 Calcium caseinate 50.2 50.2 50.2 50.2 50.2 2′ fucosyllactose (2′FL) 0.7584 0.7204 0.6824 0.7964 0.8344 Inulin, oligofructose 47.0 47.0 47.0 47.0 47.0 Soy oil 38.3 38.3 38.3 38.3 38.3 Isolated soy protein 35.9 35.9 35.9 35.9 35.9 Milk protein isolate 16.3 16.3 16.3 16.3 16.3 Canola oil 13.7 13.7 13.7 13.7 13.7 Sodium citrate 9.8 9.8 9.8 9.8 9.8 Potassium citrate 9.7 9.7 9.7 9.7 9.7 Tricalcium phosphate 9.0 9.0 9.0 9.0 9.0 Flavoring agent 7.3 7.3 7.3 7.3 7.3 Magnesium chloride 6.2 6.2 6.2 6.2 6.2 Potassium chloride 5.5 5.5 5.5 5.5 5.5 Choline chloride 1.7 1.7 1.7 1.7 1.7 Vitamin premix 950.0 g 950.0 g 950.0 g 950.0 g 950.0 g Ascorbic acid 755.0 g 755.0 g 755.0 g 755.0 g 755.0 g Vitamin/trace mineral premix 465.0 g 465.0 g 465.0 g 465.0 g 465.0 g Potassium hydroxide 215.9 g 215.9 g 215.9 g 215.9 g 215.9 g Potassium phosphate dibasic 185.8 g 185.8 g 185.8 g 185.8 g 185.8 g Ascorbyl palmitate 164.7 g 164.7 g 164.7 g 164.7 g 164.7 g Antioxidant  82.3 g  82.3 g  82.3 g  82.3 g  82.3 g Vitamin A, D3, E, K1 premix  82.3 g  82.3 g  82.3 g  82.3 g  82.3 g Vitamin A palmitate  16.5 g  16.5 g  16.5 g  16.5 g  16.5 g Ferrous sulfate  12.0 g  12.0 g  12.0 g  12.0 g  12.0 g Beta carotene 30%  5.5 g  5.5 g  5.5 g  5.5 g  5.5 g Vitamin D3 oil  1.0 g  1.0 g  1.0 g  1.0 g  1.0 g Potassium iodide  800.0 mg  800.0 mg  800.0 mg  800.0 mg  800.0 mg Citric acid AN AN AN AN AN Potassium hydroxide 40% AN AN AN AN AN Maltodextrin AN AN AN AN AN Magnesium sulfate AN AN AN AN AN Sodium chloride AN AN AN AN AN Calcium carbonate AN AN AN AN AN AN = as needed

Examples 31-35

Examples 31-35 illustrate ready-to-feed nutritional emulsions of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient Ex. 31 Ex. 32 Ex. 33 Ex. 34 Ex. 35 Water Q.S. Q.S. Q.S. Q.S. Q.S. Condensed Skim Milk 86.64 86.64 86.64 86.64 86.64 Lactose 54.80 54.80 54.80 54.80 54.80 High oleic safflower oil 14.10 14.10 14.10 14.10 14.10 Soybean oil 10.6 10.6 10.6 10.6 10.6 Coconut oil 10.1 10.1 10.1 10.1 10.1 2′ fucosyllactose (2′FL) 0.0948 0.09005 0.0853 0.0995 0.1043 6′-sialyllactose (6′SL) 0.0948 0.09005 0.0853 0.0995 0.1043 Galactooligosaccharides (GOS) 8.630 8.630 8.630 8.630 8.630 Whey protein concentrate 6.40 6.40 6.40 6.40 6.40 Potassium citrate  478.9 g  478.9 g  478.9 g  478.9 g  478.9 g Calcium carbonate 448.28 g 448.28 g 448.28 g 448.28 g 448.28 g Soy lecithin 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g Stabilizer 355.74 g 355.74 g 355.74 g 355.74 g 355.74 g ARA oil 368.01 g 368.01 g 368.01 g 368.01 g 368.01 g Nucleotide/chloride premix 293.26 g 293.26 g 293.26 g 293.26 g 293.26 g Potassium chloride 226.45 g 226.45 g 226.45 g 226.45 g 226.45 g Ascorbic acid 445.94 g 445.94 g 445.94 g 445.94 g 445.94 g Vitamin mineral premix 142.88 g 142.88 g 142.88 g 142.88 g 142.88 g DHA oil  137.8 g  137.8 g  137.8 g  137.8 g  137.8 g Carrageenan  180.0 g  180.0 g  180.0 g  180.0 g  180.0 g Magnesium chloride  55.0 g  55.0 g  55.0 g  55.0 g  55.0 g Ferrous sulfate  58.0 g  58.0 g  58.0 g  58.0 g  58.0 g Choline chloride  53.9 g  53.9 g  53.9 g  53.9 g  53.9 g Vitamin A, D₃, E, K₁ premix  47.40 g  47.40 g  47.40 g  47.40 g  47.40 g Citric acid  29.77 g  29.77 g  29.77 g  29.77 g  29.77 g Probiotic 1.0 0.95 0.90 1.05 1.10 Mixed carotenoid premix  26.40 g  26.40 g  26.40 g  26.40 g  26.40 g Sodium chloride AN AN AN AN AN L-carnitine  3.31 g  3.31 g  3.31 g  3.31 g  3.31 g Tricalcium phosphate  15.65 g  15.65 g  15.65 g  15.65 g  15.65 g Potassium phosphate monobasic  13.67 g  13.67 g  13.67 g  13.67 g  13.67 g Riboflavin  2.42 g  2.42 g  2.42 g  2.42 g  2.42 g Potassium hydroxide AN AN AN AN AN AN = as needed

Examples 36-39

Examples 36-39 illustrate concentrated liquid human milk fortifiers of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient (Per 1000 Kg) Ex. 36 Ex. 37 Ex. 38 Ex. 39 Water Q.S. Q.S. Q.S. Q.S. Casein Hydrolysate 108 108 125 150 Maltodextrin 104 104 104 104 MCT Oil 17.3 17.3 17.3 17.3 Tricalcium Phosphate 16.0 16.0 16.0 16.0 Soy Oil 10.4 10.4 10.4 10.4 6′ sialyllactose (6′SL) 0.0948 0.09005 0.0853 0.0995 Lacto-N-neotetraose (LNnT) 0.0948 0.09005 0.0853 0.0995 Galactooligosaccharides 6.7704 6.7704 6.7704 6.7704 (GOS) Gum Arabic 12.0 10.0 15.0 2.031 Starch 12.0 10.0 35.0 6.0 Coconut Oil 6.3 6.3 6.3 6.3 Potassium Citrate 6.9 6.9 6.9 6.9 Ascorbic Acid 2.9 2.9 2.9 2.9 Magnesium Chloride 4.0 4.0 4.0 4.0 ARA oil 2.6 2.6 2.6 2.6 Leucine 1.8 1.8 1.8 1.8 DHA oil 2.1 2.1 2.1 2.1 Potassium Chloride 1.1 1.1 1.1 1.1 Tyrosine 1.4 1.4 1.4 1.4 Monoglycerides 800 g 800 g 800 g 800 g Mixed Carotenoid Premix 551 g 551 g 551 g 551 g M-Inositol 529 g 529 g 529 g 529 g Sodium Chloride 861 g 861 g 861 g 861 g L-Carnitine 221 g 221 g 221 g 221 g Tryptophan 331 g 331 g 331 g 331 g Zinc Sulfate 309 g 309 g 309 g 309 g Niacinamide 320 g 320 g 320 g 320 g Tocopheryl Acetate 364 g 364 g 364 g 364 g Gellan Gum 200 g 300 g 400 g 600 g Ferrous Sulfate 106 g 106 g 106 g 106 g Choline Chloride 353 g 353 g 353 g 353 g Calcium Pantothenate 132 g 132 g 132 g 132 g Vitamin A Palmitate 77 g 77 g 77 g 77 g Riboflavin 33 g 33 g 33 g 33 g Vitamin D3 13 g 13 g 13 g 13 g Copper Sulfate 18 g 18 g 18 g 18 g Pyridoxine Hydrochloride 20 g 20 g 20 g 20 g Thiamin Hydrochloride 24 g 24 g 24 g 24 g Folic Acid 3.3 g 3.3 g 3.3 g 3.3 g Biotin 2.5 g 2.5 g 2.5 g 2.5 g Manganese Sulfate 1.8 g 1.8 g 1.8 g 1.8 g Phylloquinone 880 mg 880 mg 880 mg 880 mg Sodium Selenate 90 mg 90 mg 90 mg 90 mg Cyanocobalamin 88 mg 88 mg 88 mg 88 mg Potassium Hydroxide Q.S. Q.S. Q.S. Q.S.

Examples 40-43

Examples 40-43 illustrate concentrated liquid human milk fortifiers of the present disclosure, the ingredients of which are listed in the table below. All ingredient amounts are listed as kilogram per 1000 kilogram batch of product, unless otherwise specified.

Ingredient (Per 1000 Kg) Ex. 40 Ex. 41 Ex. 42 Ex. 43 Water Q.S. Q.S. Q.S. Q.S. Casein Hydrolysate 108 108 125 150 Maltodextrin 104 104 104 104 MCT Oil 17.3 17.3 17.3 17.3 Tricalcium Phosphate 16.0 16.0 16.0 16.0 Soy Oil 10.4 10.4 10.4 10.4 2′ fucosyllactose (2′FL) 0.0948 0.09005 0.0853 0.0995 Lacto-N-neotetraose (LNnT) 0.0948 0.09005 0.0853 0.0995 Galactooligosaccharides 6.7704 6.7704 6.7704 6.7704 (GOS) Gum Arabic 12.0 10.0 15.0 2.031 Starch 12.0 10.0 35.0 6.0 Coconut Oil 6.3 6.3 6.3 6.3 Potassium Citrate 6.9 6.9 6.9 6.9 Ascorbic Acid 2.9 2.9 2.9 2.9 Magnesium Chloride 4.0 4.0 4.0 4.0 ARA oil 2.6 2.6 2.6 2.6 Leucine 1.8 1.8 1.8 1.8 DHA oil 2.1 2.1 2.1 2.1 Potassium Chloride 1.1 1.1 1.1 1.1 Tyrosine 1.4 1.4 1.4 1.4 Monoglycerides 800 g 800 g 800 g 800 g Mixed Carotenoid Premix 551 g 551 g 551 g 551 g M-Inositol 529 g 529 g 529 g 529 g Sodium Chloride 861 g 861 g 861 g 861 g L-Carnitine 221 g 221 g 221 g 221 g Tryptophan 331 g 331 g 331 g 331 g Zinc Sulfate 309 g 309 g 309 g 309 g Niacinamide 320 g 320 g 320 g 320 g Tocopheryl Acetate 364 g 364 g 364 g 364 g Gellan Gum 200 g 300 g 400 g 600 g Ferrous Sulfate 106 g 106 g 106 g 106 g Choline Chloride 353 g 353 g 353 g 353 g Calcium Pantothenate 132 g 132 g 132 g 132 g Vitamin A Palmitate 77 g 77 g 77 g 77 g Riboflavin 33 g 33 g 33 g 33 g Vitamin D3 13 g 13 g 13 g 13 g Copper Sulfate 18 g 18 g 18 g 18 g Pyridoxine Hydrochloride 20 g 20 g 20 g 20 g Thiamin Hydrochloride 24 g 24 g 24 g 24 g Folic Acid 3.3 g 3.3 g 3.3 g 3.3 g Biotin 2.5 g 2.5 g 2.5 g 2.5 g Manganese Sulfate 1.8 g 1.8 g 1.8 g 1.8 g Phylloquinone 880 mg 880 mg 880 mg 880 mg Sodium Selenate 90 mg 90 mg 90 mg 90 mg Cyanocobalamin 88 mg 88 mg 88 mg 88 mg Potassium Hydroxide Q.S. Q.S. Q.S. Q.S.

Example 44

In this Example, the effect of 2′-fucosyllactose (2′FL) and 3′-fucosyllactose (3′FL) on stimulating enteric nerve cells in the gastrointestinal tract of rodents is analyzed.

A peristalsis model using luminally perfused mouse colon is used to test the stimulation effect of 2′FL and 3′FL on enteric nerve cells. Colon muscle is perfused with 2′FL or 3′FL, at concentrations of 1 mg/mL, 0.5 mg/mL, and 0.1 mg/mL, for 15 minutes. The frequency and amplitude of contractions of the muscle are analyzed. The results are shown in FIG. 1.

As shown in FIG. 1, there is a direct stimulation of nerve cells by 2′FL or 3′FL without involving gut microbiota and/or their metabolites. Specifically, the frequency and amplitude of contraction are reduced consistently and in a dose response fashion. Further, the data show that 3′FL is more effective than 2′FL in reducing the frequency and amplitude of contraction at a level of 0.5 mg/mL.

Example 45

In this Example, the fermentation rates of several oligosaccharide substrates are measured in an in vitro model using infant feces. Additionally, the levels of various bacteria species in the presence of the oligosaccharide substrates are measured using quantitative polymerase chain reactions to determine whether the substrates act in a prebiotic manner to facilitate the growth of beneficial bacteria and possibly retard the growth of harmful bacteria.

Eight infant participants for feces donation were selected based on the following criteria: whether the infant: (1) was full term at birth with a gestational age of 38 to 42 weeks; (2) was at or above the fifth percentile for weight at birth; (3) has no maternal medical history of diabetes, tuberculosis, or perinatal infection with proven adverse effects on the fetus; (4) was a vaginal birth; (5) was at least 2 months of age at study entry, but not older than 4 months of age; (6) has no known cardiac, respiratory, gastrointestinal, or other systemic disease such as urinary tract infection or otitis media; (7) is free of history of blood group incompatibility serious enough to result in hematological problems; and (8) is not receiving any medications (except for supplemental vitamins) and has never received antibiotics. The eight infants are allowed to consume their normal diet of breast milk or infant formula. Four infants are exclusively breast fed and four infants are exclusively formula fed one of four commercially available infant formulas.

On the day of the in vitro experiments, a fecal sample is collected in the diaper and prepped within 15 min of defecation. For prepping, the sample is placed in a container with tepid water and analyzed. Fecal samples are diluted 1:10 (wt/vol) in anaerobic dilution solution prepared by blending the solution for 15 seconds in a blender under a stream of CO₂. Blended, diluted feces are filtered through four layers of cheesecloth and sealed in 125-mL serum bottles under CO₂. Inoculum is stored at 37° C. until inoculation of in vitro tubes.

Oligosaccharide test substrates evaluated for fermentation and growing of bacterium include (1) galactooligosaccharides 95 (GOS; Inalco Pharmaceuticals, San Luis, Calif.); (2) α-(2-6′)-N-Acetylneuraminyl-lactose sodium salt (6′SL; Inalco Pharmaceuticals, San Luis, Calif.); (3) 2′-α-L-Fucopyranosyl-D-Lactose (2′FL; Inalco group, Italy); (4) Lacto-N-neotetraose (LNnT; Inalco Pharmaceuticals, San Luis, Calif.); (5) Orafti® HP inulin (HP inulin; BENEO-Orafti, Belgium); and (6) gum arabic (Fisher Scientific, Pittsburgh, Pa.).

In Vitro Substrate Fermentation Model

Approximately 80 mg of each test substrate (1)-(6) is weighed in triplicate into 16-mL Balch tubes that are used in a conventional model that simulates large bowel fermentation. An aliquot (7.2 mL) of medium (Table 1; FIG. 2) is aseptically transferred into the Balch tubes, capped with butyl rubber stoppers, and sealed with aluminum caps. Tubes containing HP inulin and gum arabic are stored at 4° C. for approximately 12 h to enable hydration of the substrates before initiating fermentation. These tubes are placed in a 37° C. water bath approximately 30 min before inoculation. Tubes containing GOS, 6′SL, 2′FL, and LNnT are hydrated upon obtaining a fecal sample and placed in a 37° C. water bath until inoculation.

Sample and blank tubes are aseptically inoculated with 0.8 ml of diluted feces. Tubes are incubated at 37° C. with periodic mixing every 2 h for up to 12 h. At 0, 3, 6, and 12 h after inoculation, tubes are removed from the 37° C. incubator and processed immediately for analyses. The pH of the tube contents is measured with a standard pH meter (Denver Instrument Co., Arvada, Colo.). A 3-ml subsample of fluid is collected and used for short-chain fatty acid and lactate analyses, all of which are individual indicators of fermentation as described further below. A 2-mL subsample is taken and frozen at −80° C. for bacterial analyses.

Short-Chain Fatty Acid (SCFA) and Lactate Analyses

SCFA Analysis: measurement of total SCFA production over time indicates how quickly the substrate is fermented. The measurement of the concentration of individual SCFAs (acetate, propionate, and butyrate) allows for the calculation of ratios of the various SCFAs, which allows determination of whether the various ratios (and specifically the proportions of acetate and lactate versus other organic acids) is similar to that of breast milk, which may be desirable.

Lactate Analysis: provides an indication of two things: (1) it is an indirect indicator of the rate of fermentation; and (2) it is suggestive that bifidobacteria and/or lactobacilli are present in significant numbers because both genera characteristically produce large amounts of lactate.

The 3-mL aliquot of fluid removed from the sample tubes for SCFA and lactate analyses is immediately added to 0.75 mL of 25% metaphosphoric acid. Concentrations of acetate, propionate, and butyrate are determined using a Hewlett-Packard 5890A series II gas chromatograph (Palo Alto, Calif.) and a glass column (180 cm×4 mm i.d.) packed with 10% SP-1200/1% H₃PO₄ on 80/100+ mesh Chromosorb WAW (Supelco Inc., Bellefonte, Pa.). Oven temperature, detector temperature, and injector temperature are 125, 175, and 180° C., respectively. The supernatants are analyzed for lactate concentration by a spectrophotometric method. SCFA and lactate concentration values are corrected for blank tube production of SCFA and 0 h concentrations for each substrate. Total SCFA are calculated as the total amount of acetate, propionate, and butyrate.

Quantitative Polymerase Chain Reaction

The 2-ml subsample of the in vitro material at each time point is used for determination of bacterial species. Two tubes from each substrate at each time point are processed. Genomic DNA is extracted and isolated using a repeated bead beating plus column (RBB+C) method. Escherichia coli, Bifidobacterium spp., Lactobacillus spp., and Clostridum perfringens are quantified via qPCR using specific primers. DNA from each serial dilution is amplified along with in vitro DNA samples using a Taqman ABI PRISM 7900HT Sequence Detection System (Applied BioSystems, Foster City, Calif.) and colony forming units, based on the standard curves, are determined as described. Due to the small concentrations of DNA extracted, only 2 ng of DNA is amplified during qPCR. Bacterial population values are corrected for blank tube production and 0 h values for each substrate.

Data is analyzed as a split-split-plot in a completely randomized block design using the Mixed procedure of SAS (SAS Inst., Inc., Cary, N.C.). Block is defined as the diet of the baby (breast milk or formula). Fixed effects tested include diet (formula fed or breast fed), substrate ((1)-(6)), and time, and the interactions are investigated if significant. Infant, period, and the interaction of infant and substrate are included as random effects in the model. Means are separated using a protected LSD with a Tukey adjustment to control for experiment-wise error. Least square means are reported along with the pooled SEM for all response criteria. A probability of P<0.05 is accepted as statistically significant.

Substrates

Substrates are analyzed for dry matter, organic matter, and free and hydrolyzed monosaccharide concentrations. HMOs are quantified using pure standards (V-Labs, Inc., Covington, La.), and all other compounds are quantified using standards of sugars and monosaccharides. Chemical composition of the sugars is provided in Table 2 (FIG. 3). Dry matter is similar among substrates, except GOS, which is a syrup and, therefore, has a lower dry matter concentration. As expected, only the HMO substrates contain any milk oligosaccharides.

Results and Discussion pH and Fermentative End-Products

The interaction of diet by time by substrate for pH tends to be significant (P=0.07); however, there are minor alterations in the change of pH at various hours, which are likely not biologically significant, with the largest difference between breast fed and formula fed infants at any time point for any substrate being less than a one pH unit change. pH change from baseline decreases (P=0.005) more in formula fed infants versus breast fed infants (FIG. 4), and this is driven by the lower pH change at 6 h (P=0.03) and 12 h (P=0.07) after inoculation. Specifically, the more rapid decline in pH for formula fed infants versus breast fed infants indicates that formula fed infants ferment non-digestible carbohydrates more rapidly than breast fed infants and have higher SCFA production than breast fed infants. Because low pHs may discourage the growth of many enteric pathogens, it is generally desirable to have lower pH.

The pH change from baseline decreases (P<0.0001) over time for all substrates except gum arabic (FIG. 5). At 3, 6, and 12 h after inoculation, pH change from baseline is smallest (P<0.0001) with the gum arabic substrate, and greatest in the LNnT, 2′FL, and GOS substrates. A decrease in pH indicates fermentation is occurring, and these data are reflective of SCFA and lactate accumulation. The lack of pH decrease for the gum arabic indicates that fermentation is not occurring.

The interaction of diet by time by substrate for acetate production is significant (P=0.03). Evaluation of this interaction indicates that at 6 h, formula fed infants have greater (P<0.01) acetate production when paired with the HMO substrates. This same effect occurs at 12 h, where formula fed infants have greater (P<0.02) acetate production when paired with 6′SL and LNnT substrates, but not for 2′FL. Overall, acetate production tends to be greater (P=0.10) with formula fed infants, and at 6 and 12 h after inoculation, formula fed infants produce more (P<0.03) acetate (FIG. 6), which is absorbed by the host for energy.

Acetate production differs over time (P<0.0001) among substrates (FIG. 7). Gum arabic does not produce (P=0.88) any appreciable amounts of acetate after 12 h of fermentation. At 3 and 6 h after fermentation, gum arabic and HP inulin produce the smallest (P<0.01) amounts of acetate compared to all other substrates. Acetate production by 6′SL is intermediate, but different (P<0.01) from all other substrates. 2′FL and LNnT produce similar amounts of acetate. Acetate production by 2′FL is lower (P=0.02) than GOS at 3 h, and both 2′FL and LNnT produce less acetate than GOS at 6 h. After 12 h of fermentation, GOS has the greatest (P<0.01) acetate production, followed by 6′SL and LNnT, 2′FL, HP inulin, with gum arabic producing no acetate.

Propionate production within diet (FIG. 8) is affected by time (P<0.0001), where production is similar between breast fed and formula fed infants at 0 and 3 h, but is increased after 6 and 12 h (P=0.02, P<0.0001, respectively) of fermentation. This led to an overall greater (P=0.03) propionate production for formula fed infants. Additionally, propionate production is different (P<0.0001) over time among substrates (FIG. 9). This interaction is due to the large increase (P<0.0001) of propionate from 6′SL after 12 h of fermentation. Propionate concentration at 12 h is lowest (P<0.0001) with gum arabic compared to all other substrates. Overall, 6′SL has greater (P<0.0001) propionate production than all other substrates. 2′FL, GOS, and LNnT have greater (P<0.0001) propionate production than gum Arabic.

Butyrate production differed (P=0.01) over time between diets (FIG. 10). Formula-fed infants have greater (P=0.03) butyrate production after 12 h of fermentation compared to breast fed infants. But overall, butyrate production is not different (P=0.35) between diets. Butyrate production is similar over time within each substrate (P=0.73), with a general increase (P<0.0001) in butyrate over time, except for GOS (FIG. 11). Butyrate production is not affected by substrate (P=0.42).

Lactate production is not affected by diet (P=0.73), and the formula fed and breast fed infants respond the same over time (P=0.19) (FIG. 12). The substrates are affected differently (P<0.0001) over time (FIG. 13). Three hours after fermentation, GOS produces greater (P<0.0001) lactate compared to HP inulin, 6′SL, and gum Arabic with this trend continuing through 12 h. Lactate production is greater (P<0.0001) with the GOS, 2′FL, and LNnT substrates as compared to HP inulin, 6′SL, and gum arabic. This trend is similar at 12 h after fermentation, as GOS, 2′FL, and LNnT lactate production is greater (P<0.0001) compared to gum Arabic. There is no lactate accumulation for 6′SL, HP inulin, and gum Arabic.

Total SCFA production is affected by diet, time, and substrate (P=0.01). This interaction is due to the greater (P=0.01) fermentation by formula fed infants when evaluating 2′FL and 6′SL after 6 and 12 h of fermentation, HP inulin after 12 h of fermentation, and LNnT after 3, 6, and 12 h of fermentation. Total SCFA production is greater (P=0.04) in formula fed infants compared to breast fed infants (FIG. 14), but this is affected by time, as this difference is only noted at 6 and 12 h of fermentation (P=0.01 and P=0.002, respectively). Further, the molar ratios of SCFA produced by formula fed infants more closely resemble that of adults than the molar ratios of SCFA produced by breast fed infants. Total SCFA production differs among substrates (FIG. 15) at 3, 6, and 12 h of fermentation (P<0.0001). Gum arabic produces the least amount of SCFA and does not change over time. After 3 and 6 h of fermentation, total SCFA production is lower (P<0.05) with HP inulin compared to all other substrates and is lower (P<0.05) with 6′SL compared to GOS. By 12 h of fermentation, total SCFA production remains lower (P<0.05) with HP inulin relative to 2′FL, 6′SL, GOS, and LNnT substrates. Also, after 12 h of fermentation, total SCFA production is greater (P<0.05) for the 6′SL and GOS substrates compared to 2′FL.

Overall, from the data it is apparent that the three HMO substrates (2′FL, 6′SL, and LNnT) and GOS are highly fermentable, producing mostly acetate and propionate, with acetate being the most prevalent SCFA and having ratios and production rates similar to total SCFA. Although some butyrate is produced, none of the substrates produced significantly more butyrate than the others. There is, however, a main effect of time indicating that there is an increase in butyrate production. This is likely due to the substrates chosen as controls for this in vitro study as GOS and HP inulin are prebiotics and result in production of butyrate, thereby not allowing substrate differences to be noted.

Conclusions from Fermentation Analysis

As shown in the data and Figures discussed above, 2′FL, 6′SL, LNnT, and GOS were readily fermented by infant fecal bacteria. The fermentation generated primarily acetate and propionate, although some butyrate was also produced. Specifically, 2′FL, LNnT, and GOS were fermented more rapidly than 6′SL, and their fermentation generated significant amounts of lactate (both 2′FL and LNnT had fermentation rates similar to GOS). The fermentation of 6′SL also resulted in substantial amounts of SCFA at a time period of 12 hours, but little lactate had accumulated in the media. Finally, infant fecal bacteria appear to have some ability to ferment HP Inulin, but are incapable of fermenting gum arabic.

Bacterial Species Analysis

Lactobacilli populations are greater in formula fed infants as compared to breast fed infants after 3 and 6 h of fermentation (P=0.03 and P=0.04, respectively) and tend to be greater (P=0.09) after 12 h of fermentation (FIG. 16). Lactobacilli populations are not affected (P=0.83) by substrate (FIG. 17). Bifidobacteria populations tend to be greater (P=0.09) in formula fed infants as compared to breast fed infants after 12 h of fermentation (FIG. 18). All the substrates change in the same manner over time, with an increase in bifidobacteria for each substrate (FIG. 19). Overall, however, GOS and 2′FL result in greater (P=0.01) bifidobacteria populations as compared to HP inulin.

E. coli populations decrease (P<0.0001) over time regardless of diet. E. coli populations tend to be greater (P=0.06) in breast fed infants as compared to formula fed infants after 6 h of fermentation (FIG. 20), but these are still below baseline values. E. coli populations are not affected (P=0.49) by substrate (FIG. 21). C. perfringens populations decrease (P=0.04) over time regardless of diet. While C. perfringens populations are noted to change differently within time based on diet, there are no differences (P>0.21) between diets after 3, 6, or 12 h of fermentation (FIG. 22), C. perfringens populations are not affected (P=0.57) by substrate, and all substrates responded similarly over time (FIG. 23).

Overall, the strongest influence on bacteria is the original diet of the infant. Formula-fed infants have greater population growth of the two potentially beneficial bacterial species (lactobacilli and bifidobacteria), while they result in less growth of potentially pathogenic species (E. coli and C. perfringens) as compared to breast fed infants. There are no differences in bacteria between diets at initial evaluation of the inoculum (at time 0) for bifidobacteria, lactobacilli, or C. perfringens. E. coli is, however, greater (P=0.04) in formula fed as compared to breast fed infants (7.1 log CFU/mL and 6.8 log CFU/mL, respectively). There are very few changes noted in bacterial populations due to substrate. It is noted, however, that GOS, a known prebiotic, and 2′FL, which exerts a bifidogenic effect similar to that of GOS, lead to greater bifidobacteria, with an approximate average 0.5 log increase indicating 2′FL's potential role as a prebiotic in infant formulas and more effectiveness as a prebiotic than other HMOs. Further, the data suggests that LNnT, 2′FL, and 6′SL are highly fermentable and may also be bifidogenic.

Conclusions from Bacterial Species Analysis

As shown in the data and Figures discussed above, LNnT, 2′FL and 6′SL all tended to generally increase bifidobacteria levels, indicating that all three of these HMOs may have some prebiotic effect, although 2′FL was the only HMO to provide a statistically significant difference is bifidobacteria levels. This indicates that 2′FL has significant prebiotic properties.

Example 46

In this Example, probiotic fermentation parameters are determined for purified HMOs, HMO precursors, and other prebiotic oligosaccharides.

Bacterial Cultures

All bifidobacteria strains are initially inoculated from frozen stocks, grown in deMan Rogosa Sharpe (MRS) broth (Difco, Detroit, Mich.) supplemented with 0.5 g/L L-cysteine/HCl and incubated at 37° C. for 24 h in an anaerobic chamber (90% N₂, 5% CO₂ and 5% H₂; Coy Laboratory Products, Grass Lake, Mich.). Subsequently, the cultures are passed twice on a semi-synthetic MRS medium (sMRS)+0.5 g/L L-cysteine which is supplemented with 1% (w/v) filter-sterilized glucose as the sole carbohydrate source. After the 2nd pass, cultures are prepared to use as inoculums for growth assays described below. For bifidobacteria strains, the same procedure is followed except all media are supplemented with 0.5 g/l L-cysteine/HCl. All bacterial strains for use in this Example are listed in the table below.

TABLE Microorganisms Culture Collection # Number Genus Species Strain 1 MJM29 Bifidobacterium Adolescentis ATCC 15703 2 MJM30 Bifidobacterium infantis S12; ATCC 15697 3 MJM32 Bifidobacterium animalis subsp. lactis DSM 10140 4 MJM22 Bifidobacterium animalis subsp. ATCC 25527 Animalis 5 MJM34 Bifidobacterium bifidum ATCC 29521 6 MJM35 Bifidobacterium breve ATCC 15700 7 MJM37 Bifidobacterium bifidum ATCC 11617 8 MJM88 Bifidobacterium lactis Bf-6 (Cargill) 9 MJM92 Bifidobacterium longum BB536 (Morinaga) 10 MJM93 Bifidobacterium infantis M-63 (Morinaga) 11 MJM94 Bifidobacterium breve M-16V (Morinaga) 12 MJM95 Bifidobacterium lactis Bb12; (Chr. Hansen)

Bacterial Growth Assays

After the 2nd pass in sMRS+glucose+cysteine, the cultures are washed once with 10 mL of sterile sMRS+cysteine (no carbohydrate), resuspended in 10 ml of sterile sMRS+cysteine (no carbohydrate) and then used as a 1% inoculum. Carbohydrates for use in this Example are shown in the table below. The carbohydrates are sterilized with a 0.22 micron filter and used at a 1% final concentration. Cell growth is performed in 250 μL of sMRS+cysteine covered with 50 μL of mineral oil in a Bioscreen 100-well Honeycomb plate. Cell growth is monitored by measuring optical density at 600 nm (OD600) using a Bioscreen C Automated Microbiology Growth Curve Analysis System. The plate reader is operated in discontinuous mode, with absorbance readings performed in 30-minute intervals, and preceded by 30-second shaking intervals at maximum speed. Controls consist of inoculated medium lacking carbohydrate. Due to space limitations on the microtitre plate, the carbohydrates are divided into three separate groups: plate A (HMO precursors: glucose, galactose, lactose, NAG, fucose, fructose and sialic acid), plate B (Prebiotics: glucose, Purimune™ GOS, purified Purimune™ GOS, Vivinal® GOS, purified Vivinal® GOS, scFOS and PDX), and plate C(HMOs: glucose, 6′-SL, 3′-SL, 2′-FL, 3′-FL and LNnT). All three plates include a positive control (glucose) and negative control (no carbohydrate).

TABLE Carbohydrates Carbohydrate Source Dextrose (D-Glucose) Fisher Scientific D(+)-Galatose ACROS-ORGANICS α-Lactose Fisher Scientific L-(−) Fucose SIGMA D-Fructose ALDRICH Sialic acid (N-acetylneuraminic acid) CALBIOCHEM NAG (N-acetyl-D-glucosamine) SIGMA GOS (Purimune ™ Galactooligosaccharide) GTC Nutrition Purified GOS (Purimune ™ GTC Nutrition Galactooligosaccharide) Vivinal ® GOS (Galactooligosaccharide) Friesland Foods Purified Vivinal ® GOS Friesland Foods (Galactooligosaccharide) scFOS (Short-Chain Fructooligosaccharide) Nutraflora ® P-95 (GTC Nutrition) PDX (Litesse ® Polydextrose) DANISCO 6′SL (6′-sialyllactose) V-labs; SL 306 Lot#HGDX 21-163-1 3′SL (3′-sialyllactose) V-labs; SL 302 Lot#HGDX 76-161-1 2′FL (2′-fucosyllactose) V-labs; Lot# DX103 3′FL (3′-fucosyllactose) V-labs; Lot# DX807 LNnT (Lacto-N-Neotetraose) Abbott Nutrition

Kinetic Analysis of Bacterial Growth

The OD600 data for each carbohydrate is corrected by subtracting the OD600 of the basal media (sMRS)+cysteine from the sample plate for each probiotic. Maximum OD is determined by inspection of the corrected growth data. OD is determined by subtracting the initial corrected OD (time point 0) from the maximum corrected OD. Samples are grown in biologically independent triplicates and the resulting growth kinetic data are expressed as the mean of these replicates.

For the growth curve plots, OD600 vs. time is first plotted for the bacteria grown on medium lacking carbohydrate (sMRS). For all other carbohydrates, the OD600 data is corrected by subtracting the OD600 of sMRS.

Purification of GOS

Purified GOS is obtained by purification of Purimune™ GOS (GTC Nutrition) and Vivinal® GOS (Friesland Foods Domo). Stock solutions of 1.5 g/100 mL are applied to a XK column (XK 50/100 column, 5.0×100 cm, GE healthcare) packed with Sephadex G25 medium (Sigma). The column is eluted with pure distilled water at a rate of 8 ml/min and is collected in 12-mL fractions by a Gilson FC 203B fraction collector.

Detection of carbohydrate in every 2-3 fractions is performed using the phenol-sulfuric acid assay. Briefly, 50 μL of sample (2 μL of fraction and 48 of distilled water in a well) is added to 150 n1 of concentrated sulfuric acid rapidly in a 96-well microtitre plate Immediately thereafter, 30 n1 of 5% phenol is added and the plate is kept in a static water bath for 30 minutes at 80° C. After cooling to room temperature for 5 minutes, it is wiped dry and absorbance at 490 nm is measured by a SpectraMax Plus384 Spectrophotometer. Based on carbohydrate analysis, fractions containing minimal di- and monosaccharides are pooled and freeze dried (Freeze dry system/Freezezone 4.5/LABCONCO) for bacterial fermentation experiments. In addition, freeze dried GOS is pooled from multiple runs in order to generate enough purified GOS for growth experiments (5 runs with Purimune™ GOS and 3 runs with Vivinal® GOS).

Results & Discussion: GOS Purification

GOS is produced by the transgalactosylation of lactose and has been used as a prebiotic supplement in pediatric nutrition. Due to issues with GOS synthesis, commercial GOS products are a mixture of many different carbohydrates which may include mono- and disaccharides. In order to test the fermentation parameters of GOS and not the mono- and disaccharides which would not normally reach the colon, a purified GOS fraction, essentially free of mono- and disaccharides is obtained. Glucose (monosaccharide), lactose (disaccharide) and raffinose (trisaccharide) are used as standards. Consistent with information from the suppliers, Purimune™ GOS has less mono- and disaccharides than Vivinal® GOS. For example, the Purimune™ GOS peaks before the raffinose peak suggesting that Purimune™ GOS consists primarily of trisaccharides or larger. For Vivinal® GOS, the peak is observed at a similar fraction number as lactose. Since lactose begins to appear in fraction 55, fractions 30 through 55 are used as the purified GOS from both suppliers.

HMO Precursor Fermentation

All bifidobacteria tested grow very little in the basal media (sMRS+cysteine), whereas they all grow well in glucose (FIGS. 24A-24H). In general, the bifidobacteria, which is not able to ferment galactose, also has reduced growth on lactose. None of the bifidobacteria are able to ferment L-fucose or sialic acid, two key constituents of HMOs and mucin. Only B. breve ATCC 15700 is able to ferment NAG, a key component of HMOs and mucin. Lastly, the majority of bifidobacteria is able to ferment fructose.

Prebiotic Fermentation

Removal of mono- and disaccharides from Purimune™ GOS results in a decrease in growth for all bifidobacteria (FIGS. 25A-25H). In fact, B. lactis DSM 10140, B. animalis ATCC 25527, B. bifidum ATCC 29521, B. lactis Bf-6 and B. longum are not able to ferment the purified Purimune™ GOS. A similar pattern is seen with purified Vivinal® GOS, except more growth is seen with Vivinal® GOS than Purimune™ GOS. In order to mimic the colonic situation, the free mono- and disaccharides present in these products need to be removed. Also, it is clear that Purimune™ GOS has a higher relative concentration of oligosaccharides. Both B. infantis strains are among the best growers on purified GOS as determined by 40D, confirming that GOS is a reasonable prebiotic to add to infant formula if the goal is to increase B. infantis. All bifidobacteria tested, except for B. animalis ATCC 25527, are able to ferment scFOS, whereas no bifidobacteria are able to ferment polydextrose (PDX).

HMO Fermentation

Only B. infantis ATCC 15697 and B. infantis M-63 are able to ferment 6′-SL, 3′-SL, 2′-FL and 3′-FL (FIGS. 26A-26G). In all cases, B. infantis M-63 grows better than B. infantis ATCC 15697. On the more complex LNnT, B. breve ATCC 15700 and the two B. infantis strains grow well but not B. breve M-16V. In addition, the ability of the two B. infantis strains to ferment HMOs correlates with the abundance of B. infantis found in breast fed infants. Curiously, both B. infantis strains are not able to ferment fucose or sialic acid.

Conclusions

There are significant differences amongst the tested bifidobacteria strains regarding their abilities to ferment HMO precursors, prebiotics and HMOs. Of the 12 bifidobacteria strains tested, none are able to ferment sialic acid. Regarding prebiotics, most of the bifidobacteria are able to ferment GOS and scFOS, but they are not able to ferment PDX. Amongst the bifidobacteria strains tested, only B. infantis ATCC 15697 and B. infantis M-63 are able to ferment 6′-SL, 3′-SL, 2′-FL and 3′-FL. B. breve ATCC 15700, B. infantis ATCC 15697 and B. infantis M-63 are able to ferment LNnT.

Example 47

In this Example, the ability of lacto-N-neotetraose (LNnT) to induce epithelial cell differentiation is evaluated using cell culture models of the human small intestine. The induction of epithelial differentiation by administration of LNnT is evaluated using in vitro cultures representing various phases of the differentiated intestinal epithelium. Epithelial cells are cultured in the presence of various concentrations of LNnT or a control oligosaccharide and the impact of the LNnT or control on cell differentiation was measured.

In a first experiment, HT-29 cells, which model the immature epithelial cells of the small intestine, are incubated in a humidified atmosphere of 5% carbon dioxide at 37 C in the presence of LNnT at concentrations of 0 mg/L (“0”), 100 mg/L (“100”), 200 mg/L (“200”), and 400 mg/L (“400”) for either 48 hours or 72 hours. The culture medium utilized is Dulbecco's Modified Eagle Medium (Life Technologies, Foster City Calif.) supplemented with 10% fetal calf serum and 2 mM glutamine. The control consists of a combination of 91.5 mg lactose and 62.4 mg galactosamine (“LG”) per Liter of the Dulbecco's Modified Eagle Medium set forth above. The impact of the LNnT at various levels and the control on HT-29 cell proliferation is measured using a conventional BrdU assay, which measures the number of cells that have recently synthesized DNA. The results of the measurements are shown in FIGS. 27 and 28, which indicate that LNnT reduced HT-29 cell proliferation across a wide spectrum of concentration and time values.

In a second experiment, Caco-2 cells, which model more mature epithelial cells of the small intestine, are incubated in a humidified atmosphere of 5% carbon dioxide at 37 C in the presence of LNnT at concentrations of 0 mg/L (“0”), 100 mg/L (“100”), 200 mg/L (“200”), and 400 mg/L (“400”) for either 48 hours or 72 hours. The culture medium utilized is Dulbecco's Modified Eagle Medium (Life Technologies, Foster City Calif.) supplemented with 10% fetal calf serum and 2 mM glutamine. The control consists of a combination of 91.5 mg lactose and 62.4 mg galactosamine (“LG”) per Liter of the Dulbecco's Modified Eagle Medium set forth above. The impact of the LNnT at various levels and the control on Caco-2 cell proliferation is measured using a conventional BrdU assay, which measures the number of cells that have recently synthesized DNA. The results of the measurements are shown in FIGS. 29 and 30, which indicate that LNnT generally reduces Caco-2 cell proliferation across a wide spectrum of concentration and time values.

Conclusions

The data reported in FIGS. 27-30 indicate that LNnT inhibits intestinal cell proliferation at multiple stages of epithelial cell development (immature and more mature cells) at concentrations both equal to and below that of human breast milk. This inhibition of proliferation promotes and stimulates gastrointestinal maturation by allowing cells to move into a differentiated state.

Example 48

In this Example, the ability of Lacto-N-neotetraose (LNnT), 2′-Fucosyllactose (2′FL), and 6′-Sialyllactose (6′SL) to induce epithelial cell differentiation and barrier function (cell resistance) is evaluated using cell culture models of the human small intestine. The induction of epithelial differentiation and increase in barrier function by administration of LNnT, 2′FL, and 6′SL is evaluated using in vitro cultures representing various phases of the differentiated intestinal epithelium. Epithelial cells are cultured in the presence of various concentrations of LNnT, 2′FL, 6′SL or a control oligosaccharide of each of these human milk oligosaccharides (HMOs) and the impact of the LNnT, 2′FL, 6′SL or controls on cell proliferation, cell differentiation, and barrier function was measured.

In a first experiment, HT-29 cells, which model the immature epithelial cells of the small intestine, are incubated in a humidified atmosphere of 5% carbon dioxide at 37° C. in the presence of LNnT or 2′FL at concentrations of 0 mg/L (“0”), 20 mg/L (“20”), 200 mg/L (“200”), and 2000 mg/L (“2000”) or in the presence of 6′SL at concentrations of 0 mg/mL (“0”), 40 mg/mL (“40”), 400 mg/mL (“400”), and 4000 mg/mL (“4000”) for 72 hours. The culture medium utilized is Dulbecco's Modified Eagle Medium (Life Technologies, Foster City Calif.) supplemented with 10% fetal calf serum and 2 mM glutamine. The controls (“energy”) consist of 91.5 mg lactose and 64.2 mg N-acetyllactosamine/L for LNnT; 133 mg lactose and 67 mg fucose/L for 2′FL; and 195 mg lactose and 205 mg/L sialic acid for 6′SL. The impact of the LNnT, 2′FL, and 6′SL at various levels and the controls on HT-29 cell proliferation is measured using a conventional BrdU assay, which measures the number of cells that have recently synthesized DNA. The results of the measurements are shown in FIGS. 31-33, which indicate that each of LNnT, 2′FL, and 6′SL is capable of reducing cell proliferation at higher doses. Additionally, the impact of LNnT, 2′FL, and 6′SL at various levels and the controls on the alkaline phosphatase activity per milligram of protein for HT-29 cells, which is an indicator of cell differentiation, is measured. The results of the measurements are shown in FIGS. 34-36, which indicate that there is a significant increase in alkaline phosphatase activity (and thus an increase in cell differentiation) at the high dose of 2′FL, a trend toward an increase in cells treated with LNnT, and no apparent effect on cells treated with 6′SL.

FIGS. 37-39 illustrate the effect of LNnT, 2′FL, and 6′SL on cell resistance (transepithelial resistance), which is a marker for epithelial barrier function, wherein a higher resistance is associated with a higher barrier function. Epithelial cell resistance or barrier function is a measure of differentiated epithelial cell function. Specifically, as the cells mature, tighter junctions between the cells are formed resulting in a stronger epithelial cell barrier. This barrier prevents the movement of large molecules, bacteria, or viruses from one side of the barrier to the other. Transepithelial resistance is measured using Transwell Snapwell inserts containing the desired cell culture are transferred to modified Ussing chambers and bathed in modified Kreb's solution at 37 C with 95% oxygen and 5% carbon dioxide. Transepithelial resistance is measured as the passive transport of ions across the monolayers.

In a second experiment, Caco-2 cells, which model more mature epithelial cells of the small intestine, are incubated in a humidified atmosphere of 5% carbon dioxide at 37° C. in the presence of LNnT or 2′FL at concentrations of 0 mg/L (“0”), 20 mg/L (“20”), 200 mg/L (“200”), and 2000 mg/L (“2000”) or in the presence of 6′SL at concentrations of 0 mg/mL (“0”), 40 mg/mL (“40”), 400 mg/mL (“400”), and 4000 mg/mL (“4000”) for 72 hours. The culture medium utilized is Dulbecco's Modified Eagle Medium (Life Technologies, Foster City Calif.) supplemented with 10% fetal calf serum and 2 mM glutamine. The controls (“energy”) consist of 91.5 mg lactose and 64.2 mg N-acetyllactosamine/L for LNnT; 133 mg lactose and 67 mg fucose/L for 2′FL; and 195 mg lactose and 205 mg sialic acid/L for 6′SL. The impact of the LNnT, 2′FL, and 6′SL at various levels and the control on Caco-2 cell proliferation is measured using a conventional BrdU assay, which measures the number of cells that have recently synthesized DNA. The results of the measurements are shown in FIGS. 40-42, which indicate none of LNnT, 2′FL, or 6′SL have an effect on Caco-2 cell proliferation. Additionally, the impact of LNnT, 2′FL, and 6′SL at various levels and the controls on the alkaline phosphatase activity per milligram of protein for Caco-2 cells, which is an indication of cell differentiation, is measured. The results of the measurements are shown in FIGS. 43-45, which indicate that there is a trend toward increased alkaline phosphatase activity (and thus an increase in cell differentiation) in 2′FL treated cultures, a trend toward an increase in cells treated with LNnT, and no apparent effect on cells treated with 6′SL.

FIGS. 46-48 illustrate the effect of LNnT, 2′FL, and 6′SL on cell resistance (transepithelial resistance), which is a marker for epithelial barrier function, wherein a higher resistance is associated with a higher barrier function. Epithelial cell resistance or barrier function is a measure of differentiated epithelial cell function. Specifically, as the cells mature, tighter junctions between the cells are formed resulting in a stronger epithelial cell barrier. This barrier prevents the movement of large molecules, bacteria, or viruses from one side of the barrier to the other. The results indicate that LNnT can have a positive effect on cell resistance for more mature Caco-2 cells. Transepithelial resistance is measured using Transwell Snapwell inserts containing the desired cell culture were transferred to modified Ussing chambers and bathed in modified Kreb's solution at 37 C with 95% oxygen and 5% carbon dioxide. Transepithelial resistance was measured as the passive transport of ions across the monolayers.

CONCLUSIONS

The data reported in FIGS. 31-42 indicate that LNnT, 2′FL, and 6′SL each inhibits intestinal cell proliferation in immature epithelial cells at concentrations both equal to and below that of human breast milk. This inhibition promotes and stimulates gastrointestinal maturation by allowing cells to move into a differentiated state. Further, the data reported in FIGS. 43-48 indicate that LNnT can positively affect barrier function of more mature cells. The development of a strong epithelial cell barrier is characteristic of a differentiated and mature cell culture and models the strengthening of the intestinal epithelial cell barrier that develops in human infants during the first weeks of postnatal life. Combined, these data support that neutral oligosaccharides, including LNnT, can promote maturation of the gastrointestinal tract through inhibition of proliferation as well as direct promotion of differentiation and barrier function of intestinal epithelial cells. 

What is claimed is:
 1. A method for regulating gut motility in an infant in need thereof, the method comprising administering a nutritional composition comprising a human milk oligosaccharide selected from the group consisting of 2′-fucosyllactose and 3′-fucosyllactose, to the infant.
 2. The method of claim 1, wherein the human milk oligosaccharide is present in a concentration of from about 0.001 mg/ml to about 20 mg/ml.
 3. The method of claim 1, wherein gut motility is regulated by reducing contractions in the infant's gastrointestinal tract.
 4. The method of claim 3, wherein the human milk oligosaccharide reduces the contractions.
 5. The method of claim 3, wherein the frequency of contractions is reduced.
 6. The method of claim 3, wherein the amplitude of contractions is reduced.
 7. The method of claim 3, wherein both the frequency and amplitude of contractions are reduced.
 8. The method of claim 7, wherein the frequency and amplitude of contractions are reduced in a dose response fashion to the concentration of the human milk oligosaccharide in the nutritional composition.
 9. The method of claim 3, wherein the infant is in need of regulation of gut motility as a result of susceptibility to one or more gut motility disorders.
 10. The method of claim 3, wherein reducing contractions in the infant's gastrointestinal tract includes direct stimulation of enteric nerve cells.
 11. The method of claim 10, wherein the human milk oligosaccharide directly stimulates the enteric nerve cells.
 12. A method for reducing colic in an infant in need thereof, the method comprising administering a nutritional composition comprising 2′-fucosyllactose to the infant.
 13. The method of claim 12, wherein 2′-fucosyllactose is present in a concentration of from about 0.001 mg/ml to about 20 mg/ml.
 14. The method of claim 12, wherein the nutritional composition further comprises lacto-N-neotetraose.
 15. The method of claim 12, wherein the infant in need thereof exhibits symptoms of colic.
 16. A method for improving gastrointestinal tolerance in an infant in need thereof, the method comprising administering a nutritional composition comprising 2′-fucosyllactose to the infant.
 17. The method of claim 16, wherein 2′-fucosyllactose is present in a concentration of from about 0.001 mg/ml to about 20 mg/ml.
 18. The method of claim 16, wherein the infant is in need of improved gastrointestinal tolerance as a result of susceptibility to food intolerance.
 19. The method of claim 16, wherein the infant is in need of improved gastrointestinal tolerance as a result of susceptibility to intolerance to enteral feeding.
 20. The method of claim 16, wherein the infant is in need of improved gastrointestinal tolerance as a result of a need for increased digestive tolerance.
 21. The method of claim 20, wherein the nutritional composition comprises a combination of fast, medium, and slowly digested carbohydrates. 